This Prostate Stimulator is a classic for every toy collection as well as a great way for beginners to start exploring anal play. This smooth, sturdy toy is curved to reach and massage his prostate while the ribbed design also stimulates the perineum. Enjoy this toy with lots of lube or in the bath or shower for an extraordinary sensation. Materials: Phthalate-free plastic. Waterproof. Size: Approx. 4 inches insertable length and approx. 3.25 inches in cirumference at widest point. Color: Black.