Dr. Joel Kaplan 10 Function Prostate Massager Ring is an intensely powerful ergonomically curved prostate massager with enhancing ring. 10 functions of vibration, pulsation and escalation. Stimulation and support in one. Pliable and durable Silicone. Plug-in jack. Safe and pure for body and pleasure. Made using phthalate free materials: Silicone probe, ABS plastic controller, ABS plastic with Silver Plating decoration. Vibrating sex toy requires 2 AAA batteries, not included. Bulk weight 4 ounces. 3 inches by 1.5 inches probe. 1.5 inches diameter ring.