Dr. Joel Kaplan Prostate Massager 6.75 inches. Multiple speed waterproof slim massager is angled for ultimate prostate contact! May be used in or out of the water. 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. All types of lubricants may be used with hard plastics. Vibrating sex toy requires 2 AAA batteries, not included.