Black, interchangeable dildo for strap-on (Ø 4 x 17 cm) This dildo is sturdy and made of 100% silicone material. At the bottom there is a screw cap that makes it easy to attach this dildo to one of our compatible strap-on harnesses. Want to attach this dildo to a standard strap-on harness or smooth surface? Then use it in combination with suction cup 9147. We recommend using this dildo with water-based lubricant. Click here to check out all dildos with the same screw system.