Blue Line Ball Sheath With Cock Support Non-Vibrating Penis Sleeve & Enhancers Experience elevated stimulation through penis play with the use of this Ball Sheath Cock Ring that prevents the wearer from feeling external touch from a partner. The ball sheath connects to a solid cock ring that sits at the base of the wearer’s penis to enhance his erection and increase sensitivity to the shaft for heightened pleasure. Available in a clear shade, this device also offers a view of all the action.