Dr. Joel Kaplan 5 Function Prostate Stimulator Waterproof. Endorsed by Dr. Joel Kaplan. Seamless prostate massager stimulator with ergonomic ridges and an angled tip for pinpoint prostate stimulation. 5 powerful functions of vibration, pulsation, and escalation. Easy to operate with a push button power control. Waterproof sex toys are safe for use in the bath or shower. Do not submerge for long periods of time and take care to thoroughly dry after each use. Safe and pure for body and pleasure. Made using phthalate free, non-toxic materials ABS plastic with Rubber Cote Polyurethane PU cote. All types of lubricants may be used with hard plastics. P-spot massager measures 6.75 inches long by 1.4 inches wide. Vibrating sex toy requires 2 AA batteries, not included. Do not leave batteries in the vibrator between uses.