Kiotos COX - Strap-On Set with Monstar Dildo Echo - Black

A sturdy leather harness, four interchangeable metal O-rings, and a black dildo that looks like it was inspired by the deep sea: the Kiotos COX Strap-On Set with Monstar Echo Dildo is certainly no run-of-the-mill strap-on set. The set consists of the robust Kiotos COX Strap-On Deluxe harness and the strikingly shaped Monstar Echo dildo. Together, they form a complete strap-on set for those who want sturdiness, adjustability, and bold design all in one package.
The harness is crafted from Kiotos leather and features an open design with adjustable straps. It fits waist sizes up to approximately 100 cm. Thanks to four included, interchangeable O-rings, you’re not limited to using just the Echo: the harness allows you to attach various other compatible dildos later on.

COX Strap-On Deluxe: a sturdy leather harness

The foundation of this set is the Kiotos COX Strap-On Deluxe harness. Instead of a brief-style design, Kiotos opts for an open construction with leather straps. This allows the harness to be adjusted to fit the body and keeps the design relatively minimalist: no excess fabric, just a sturdy base for the attached dildo.
The black leather gives the COX a classic BDSM look and provides a striking contrast to the polished metal O-ring on the front. The straps are adjustable, and the harness fits waist sizes up to approximately 100 cm. Before use, adjust the straps evenly so the harness fits snugly without causing unnecessary pinching.

Four O-rings for different dildo sizes

A key feature of the COX is its interchangeable O-ring design. This set includes four polished steel O-rings with inner diameters of 4 cm, 4.5 cm, 5 cm, and 7 cm, respectively.
For the included Echo dildo, the 4 cm O-ring is the recommended size, since the dildo itself has a diameter of approximately 4 cm. The other rings make the harness more versatile if you want to use a different compatible dildo later on.
When choosing, consider not only the dildo’s diameter but also the construction of its base. A strap-on dildo must have sufficient support behind the O-ring to stay securely in place in the harness.

Monstar Echo: anything but a standard dildo

While the COX harness has a fairly classic look, the Monstar Echo dildo takes a much more adventurous turn. Echo features a curved, imaginative design with pronounced ridges along the shaft. Its shape is inspired by organic and maritime lines, setting it apart immediately from a traditional realistic dildo.
The total length is approximately 24.5 cm, of which about 18 cm is insertable. With a diameter of approximately 4 cm, Echo remains relatively slender despite its generous length. The combination of the curve and the distinct surface texture provides a more tactile sensation than a completely smooth dildo.

Flexible, phthalate-free PVC

The Echo is made of phthalate-free vinyl (PVC). The material flexes during use, making the sculpted details along the shaft clearly noticeable. For a smoother experience, apply a generous amount of suitable water-based lubricant.
At the base is a suction cup. Not only does it form the wide base that secures the Echo to the COX harness, but it also allows the dildo to be used separately from the harness for hands-free use on a suitable smooth surface. This gives the dildo a second life when the leather harness is taking a break.

A complete set that can evolve over time

The advantage of this combination is that you get a ready-to-use strap-on set right away, but you’re not permanently tied to a single dildo. Echo and the COX harness are separate components. Thanks to the four O-ring sizes, you can later combine the harness with other compatible strap-on dildos.
That makes the set appealing if you want to vary the diameter, length, material, and shape. Echo offers a distinct initial configuration right out of the box; the extra O-rings leave the door open for future experimentation.

Use and Care

Before use, insert the appropriate O-ring into the harness and thread the Echo dildo through the ring so that the wide base rests securely behind the ring. Put on the harness and adjust the leather straps evenly. Before you begin, check that the dildo is securely attached and that the harness isn’t pinching you anywhere.
After use, clean the Echo carefully according to the maintenance instructions for PVC and let it dry completely before storing it. You can wipe down the leather COX harness with a slightly damp cloth. Always let leather dry naturally and do not submerge the harness in water. Avoid harsh cleaning agents that can dry out or damage the leather.

General Features

• Brand: Kiotos
• Series: COX / Monstar
• Complete strap-on set
• Includes COX Strap-On Deluxe harness
• Includes Monstar Echo dildo
• Color: black
• Harness made of Kiotos leather
• Open and adjustable harness design
• Suitable for waist sizes up to approximately 100 cm
• Includes 4 interchangeable polished steel O-rings
• O-ring inner diameters: 4 cm, 4.5 cm, 5 cm, and 7 cm
• Recommended O-ring for Echo: 4 cm
• Echo total length: approximately 24.5 cm
• Echo insertable length: approximately 18 cm
• Echo diameter: approximately 4 cm
• Dildo made of phthalate-free vinyl (PVC)
• Curved fantasy design
• Distinctive texture along the shaft
• Echo features a suction cup
• Harness compatible with various dildos

Included in the set

• 1 × Kiotos COX Strap-On Deluxe leather harness
• 1 × Kiotos Monstar Echo dildo
• 1 × O-ring with an inner diameter of 4 cm
• 1 × O-ring with an inner diameter of 4.5 cm
• 1 × O-ring with an inner diameter of 5 cm
• 1 × O-ring with an inner diameter of 7 cm

FAQ

What are the dimensions of the dildo included in the Kiotos COX Strap-On Set with Monstar Echo Dildo?
The Monstar Echo is approximately 24.5 cm long and has an insertable length of about 18 cm. The diameter is approximately 4 cm. This makes the included O-ring with an inner diameter of 4 cm the most suitable ring for the Echo.
What waist size is the Kiotos COX Strap-On Set with Monstar Echo Dildo suitable for?
The adjustable leather COX Strap-On Deluxe harness is suitable for a waist size up to approximately 100 cm. Adjust the straps so that the harness sits securely without causing any unnecessary pressure points.
Can I use other dildos with the Kiotos COX Strap-On Set with Monstar Echo Dildo?
Yes. That’s exactly why four interchangeable O-rings are included, with inner diameters of 4, 4.5, 5, and 7 cm. This allows you to combine the harness with various compatible dildos, provided their shape and base are suitable for attachment to an O-ring harness.
Can I use the Echo dildo from the Kiotos COX Strap-On Set with Monstar Echo Dildo without the harness?
Yes. The Echo has its own wide base with a suction cup. This allows it to be removed from the harness and used separately. The suction cup can be attached to a suitable smooth surface for hands-free use.
The Kiotos COX Strap-On Set with Monstar Echo Dildo beautifully brings two worlds together: classic black leather forms the sturdy foundation, while Echo, with its curved silhouette and distinctive texture, provides the adventure. We ship the complete set quickly and in completely discreet packaging, so only you know what sea monster is hiding inside the box.