E-Stim Systems - Black Collection - Electro Plug Bipolar Electrode

Dark, heavy, and seductively smooth: the E-Stim Systems Black Collection Electro Plug is a high-quality bipolar electrode for electrostimulation enthusiasts who take their equipment just as seriously as their play. The rounded shapes, distinctive Satin Finish, and clever double-waist design give this electro plug a striking look and offer various possibilities during use. You can choose from Small, Medium, Large, and XL, with diameters ranging from 44 to a whopping 62 mm.
The four versions share the same recognizable design but differ significantly in size and weight. With a 44-mm diameter, Small is the most accessible option. Medium increases to 50 mm, Large to 56 mm, and XL rounds out the lineup with an impressive 62 mm. The weight also increases significantly: from 331 grams for Small to a whopping 974 grams for XL. So, it’s the same dark family, but each member definitely has its own personality.

Four sizes, four different experiences

The Black Collection Small, with a total length of 112 mm, is the most compact version. The maximum insertable length is 83 mm, and the head has a diameter of 44 mm, resulting in a circumference of approximately 138 mm. Weighing 331 grams, even this smallest version feels substantial. Small is a logical choice if you want to get acquainted with the Black Collection or deliberately prefer a more compact size.
A clear step up in size is the Black Collection Medium. This version measures 132 mm in total length, of which up to 95 mm is insertable. The diameter is 50 mm and the circumference is approximately 157 mm. The weight increases to 522 grams. As a result, the Medium offers noticeably more volume and mass without immediately jumping to the truly substantial models in the collection.
For experienced users who are specifically looking for a large electro plug, there’s the Black Collection Large. With a total length of 146 mm, a maximum insertable length of 105 mm, and a diameter of 56 mm, this is already a serious electrode. The circumference is approximately 175 mm, and it weighs 720 grams. The Large model makes little secret of its intentions.
And then there’s the Black Collection XL. With a diameter of no less than 62 mm, E-Stim Systems explicitly states that this is not a model for beginners. The total length is 163 mm, of which up to 115 mm is insertable. The circumference is approximately 195 mm, and with a weight of 974 grams, the XL model stays just under the magic one-kilogram mark. While the Large model already has a substantial presence, the XL simply adds another chair to the table—and ends up taking up the most space.

From 44 to 62 mm in diameter

The beauty of having a single listing for the entire Black Collection is that you can see the differences side by side. Each size increase adds about 6 mm in diameter, but the difference in volume grows progressively larger as a result. So the choice isn’t just about a few extra millimeters in diameter. Length, mass, and overall size also increase significantly. The jump to XL, in particular, deserves respect: with nearly a kilogram of electrode, this is a clear choice for highly experienced users.

• Small: Ø 44 mm – 112 mm long – 83 mm insertable – 331 g
• Medium: Ø 50 mm – 132 mm long – 95 mm insertable – 522 g
• Large: Ø 56 mm – 146 mm long – 105 mm insertable – 720 g
• XL: Ø 62 mm – 163 mm long – 115 mm insertable – 974 g

Double waist, two insertion depths

One of the most interesting features of the Black Collection is the dual sphere, double-waisted design. The rounded double shape creates two distinct waists, giving you a choice in insertion depth.
You can insert the electrode up to the black insulator, allowing the electrical sensations to be concentrated more intensely around the opening. If you also insert the second rounded section, the contact areas will be positioned deeper.
This makes the design more versatile than a simple straight electrode. A relatively small change in position can alter the distribution of the electrical sensation. So you’re not just choosing between four sizes; within each size, you can also experiment with placement.

Contact Zones at the Top and Bottom

Small, Medium, Large, and XL are all bipolar electrodes. The two conductive contact areas are integrated into the top and bottom of the design and are electrically separated from each other by the black insulating section.
This top-bottom design is characteristic of many premium insertable electrodes from E-Stim Systems. Both electrical poles are located within the same plug, eliminating the need for a separate second electrode to complete the circuit.
The Black Collection can be used both anally and vaginally. Always choose a size that suits your own experience and anatomy.

The Dark Satin Finish

The Black Collection immediately stands out from many traditional metal E-Stim electrodes. The dark Satin Finishgives the plug an almost instrumental appearance: less of a shiny toy, more of a mysterious piece of equipment that you immediately suspect has interesting plans.
E-Stim Systems manufactures the Black Collection in the United Kingdom from aircraft-grade aluminum. The smooth, rounded shapes facilitate controlled insertion, while the pronounced waistlines help keep the electrode in place once inserted.
Moreover, the Satin Finish isn’t just an aesthetic choice. E-Stim now uses this finish on a large portion of its premium electrodes because of its smooth feel and durable properties.

Which Black Collection size is right for me?

Don’t automatically choose the largest size. With electrostimulation, bigger isn’t necessarily better. The Small (44 mm)is the most compact version and therefore the most accessible choice within this specific series.
The Medium (50 mm) is a clear next step up. The diameter increases by 6 mm, while the weight rises from 331 to 522 grams. Medium thus offers significantly more physical presence.
With the 56-mm Large, you’re firmly in the segment for experienced users. The combination of a 56-mm diameter, 105-mm insertable length, and 720-gram weight makes this a substantial metal insertable.
The 62-mm XL is then at the very opposite end of the spectrum. E-Stim Systems describes it as one of its larger insertables and emphasizes that this model is not intended for beginners. At 974 grams, the XL weighs nearly three times as much as the Small.

All dimensions side by side

Variant Small Medium Large XL
Total length 112 mm 132 mm 146 mm 163 mm
Max. insertable length 83 mm 95 mm 105 mm 115 mm
Diameter 44 mm 50 mm 56 mm 62 mm
Circumference approx. 138 mm approx. 157 mm approx. 175 mm approx. 195 mm
Weight 331 g 522 g 720 g 974 g
Connection 2 × 4 mm 2 × 4 mm 2 × 4 mm 2 × 4 mm

Connecting to Your E-Stim Power Box

All four sizes feature two heavy-duty 4 mm sockets in the base. To connect to an E-Stim Systems power box, you’ll therefore need a compatible cable with 4 mm connectors. This cable is not included with the electrode as standard.
For extended use, E-Stim Systems recommends the 4 mm Low Profile Cable. The more compact connectors protrude less from the base. This can be more practical when the electrode remains in place for an extended period and also reduces the risk of unnecessary mechanical stress on a protruding connector.

Water-based lubricant

E-Stim Systems recommends a suitable water-based lubricant for the Black Collection, including its own ElectroGel. This facilitates smooth placement and simultaneously helps ensure good electrical contact between the conductive surfaces and the body.
The manufacturer advises against using silicone-based or hybrid lubricants with these premium electrodes. According to E-Stim Systems, condoms are also not suitable for use over the electrode.

Dismountable for thorough cleaning

The Black Collection Electro Plug can be disassembled for thorough cleaning. First, turn off the power box, disconnect the cable, and disassemble the electrode according to E-Stim Systems’ instructions.
Clean all surfaces, seams, and grooves with a mild, fragrance-free cleanser, a suitable toy cleaner, or a medical-grade cleaning solution. Avoid alkaline and corrosive cleaning agents, and rinse away any residue thoroughly.
For additional disinfection, E-Stim Systems recommends 70% isopropyl alcohol. The manufacturer also states that these premium electrodes can be boiled or steam-sterilized. This may cause slight discoloration without affecting the electrode’s functionality.
Dry the individual parts with a clean, lint-free cloth and let everything air dry completely before reassembling and storing the plug.

Protective Storage Case and Lifetime Warranty

Every Black Collection electrode comes in a reusable protective storage case. This protects the finish during storage and keeps the electrode neatly separated from other toys and accessories.
Small, Medium, Large, and XL are all part of E-Stim Systems’ premium electrode line and are covered by the lifetime manufacturer’s warranty for the original purchaser, subject to the manufacturer’s terms and conditions.

Safe Use of the Black Collection Electro Plug

Always start electrostimulation at the lowest intensity and increase the level gradually. Insert the electrode gently using plenty of water-based lubricant, and never force a size that cannot be inserted easily.
This deserves special emphasis with this series. The differences between the four models are significant, and the Large and XL models, in particular, are intended for experienced users. The XL has a diameter of 62 mm and weighs nearly one kilogram; support and controlled movement are important with such a weight.
Use only equipment designed for e-stim and follow the safety instructions provided by the manufacturer of your power box. E-Stim recommends electroplay below the waist, warns against use around the head and neck, and advises against use during pregnancy, in cases of epilepsy, certain heart conditions, and with electronic implants such as a pacemaker or insulin pump. Stop immediately if you experience sharp pain, irritation, or other unusual sensations.

General Features

• Brand: E-Stim Systems
• Series: Black Collection
• Type: bipolar insertable electrode / electro plug
• Available sizes: Small, Medium, Large, and XL
• Suitable for anal and vaginal electrostimulation
• Aircraft-grade aluminum
• Dark satin finish
• Rounded double-spherical shape
• Double-waisted design for varying insertion depths
• Top-bottom contact design
• Two electrical contact zones in each electrode
• No separate second electrode required
• Small: 112 mm long, Ø 44 mm, 83 mm insertable length, 331 g
• Medium: 132 mm long, Ø 50 mm, 95 mm insertable, 522 g
• Large: 146 mm long, Ø 56 mm, 105 mm insertable, 720 g
• XL: 163 mm long, Ø 62 mm, 115 mm insertable, 974 g
• 2 × 4 mm connectors in the base
• Requires a compatible 4 mm cable
• Compatible with the E-Stim 4 mm Low Profile Cable
• Cable not included
• Can be disassembled for thorough cleaning
• Reusable protective storage case included
• Manufactured in the United Kingdom
• Lifetime warranty for the original purchaser under manufacturer’s terms

FAQ

Which size of the E-Stim Systems Black Collection Bipolar Electro Plug should I choose?
The Black Collection consists of four sizes. Small has a diameter of 44 mm, Medium 50 mm, Large 56 mm, and XL 62 mm. Choose a size that suits your experience and anatomy. The Large and the XL—which weighs nearly one kilogram—are specifically intended for experienced users who are specifically looking for a substantial insertable electrode.
What are the differences between the Small, Medium, Large, and XL sizes of the E-Stim Systems Black Collection Bipolar Electro Plug?
In addition to diameter, length, insertable length, and weight also increase. Small measures 112 mm and weighs 331 grams; Medium measures 132 mm and weighs 522 grams; Large measures 146 mm and weighs 720 grams; and XL measures 163 mm and weighs a whopping 974 grams. The maximum diameter ranges from 44 to 62 mm.
How does the dual-waist design of the E-Stim Systems Black Collection Bipolar Electro Plug work?
The design features two rounded sections and two waists. This allows you to position the electrode up to the black insulator or further, all the way to the second waist. The position of the electrical contact zones relative to the body changes as a result, which can provide a different distribution of stimulation.
What cable do I need for the E-Stim Systems Black Collection Bipolar Electro Plug?
All four models have two 4 mm sockets in the base. For an E-Stim Systems power box, you’ll need a compatible 4 mm cable. For extended use, the manufacturer recommends the 4 mm Low Profile Cable, where the connectors protrude less from the base. A cable is not included as standard.
From the relatively compact Small, weighing 331 grams, to the Black Collection XL, which weighs nearly one kilogram: this dark family lets you choose exactly the size and weight you’re looking for. Four sizes, the same well-thought-out bipolar design, and a range from 44 to a whopping 62 mm. Your chosen model will be carefully packaged and shipped quickly and completely discreetly.