The Cock Lock Intruder uses an anal anchoring ball to lock a steel cock ring around your cock and balls. The steel ring will keep your cock hard. Meanwhile the steel ball will lock the device firmly in your anus. Of course as you move you'll feel the ball moving inside of you. Prepare for some spectacular sex with this device.

S = ring 40 mm, ball 40 mm; M = ring 45 mm, ball 45 mm; L = ring 50 mm, ball 50 mm; XL = ring 55 mm, ball 50 mm