Now you can massage those tight spots and satisfy that need to relax! Place the soft silicone ring around your finger and rotate the variable speed control. Place the tip on that special spot and let the vibrating pulses go to work. Tension disappears as the tender area is totally satisfied. Finger Fun is completely waterproof so it`s perfect in the shower. bath or hot tub. Let them know you care... Try it on someone you love! Requires 3 LR44 / AG13 (1.5V) batteries (Included).