Inverted Chastity Cage Sex Toys Chastity Lock Couple Lock Chastity Nice 'n' Naughty Impotence Ring Chastity Device S0a98d8ae618649c5a5a9e28f6cf0e566t.jpg Amazon.com: Chastity Devices Set Adult Sex Toys with 4 Cock Rings and. The revolutionary Nice 'n' Naughty Impotence Ring Chastity Device effectively combats unwanted erections and guarantees lasting submission. The Nice 'n' Naughty Impotence Chastity Device features a circular cock ring that is positioned behind the testicles, along with two additional rings that curve upwards. The final ring is equipped with three pointed screws, welded in place to deny any potential signs of arousal. Available in Small and Large, this device is made of sturdy stainless steel for maximum durability. When its important to be impotent, trust Nice 'n' Naughty and this subtle chastity device. Top measuring tip for cock ring: With an erect penis, take a piece of string and wrap it around the base, behind the balls. Measure this string to the nearest millimetre. This will give you the circumference, so divide this by (3. 14) for the diameter. If you are between sizes, size down for a snug fit. Brand: Nice 'n' Naughty. Colour: Silver. Size: S Ring Diameters 45mm x 50mm x 55mm; L Ring Diameters 50mm x 55mm x 60mm. Material: Stainless Steel.