The Cock Ring is intended to rest behind the male genitalia, flat against the body.
To wear, feed each testicle through the hole first, followed by the shaft. The flat edges on these cock rings help ensure comfort, even when wearing on a semi-permanent basis.
Small: 8mm x 40mm
Medium: 8mm x 45mm
Large: 8mm x 50mm
XL: 8mm x 55mm