Make it thicker. longer and stronger with the Stay Hard Reusable Cock Ring from Blush Novelties. Stretchy band TPE cock ring hugs your cock and/or balls to keep your erection hard. Demo batteries are installed for your convenience. During sex. switch on the strong vibrations to stimulate and please your partner. Last approximately 30 minutes. and Requires 2 pcs LR41 Batteries (8 Included) Color Blue