The Gyration Sensations Mini Gyrating Thumper from California Exotic Novelties features extreme vibrating and gyrating action. It is silky smooth and whisper quiet with 3 speeds. Waterproof for play in and out of the water. Safe and pure for body and pleasure. Made using phthalate free materials: ABS plastic with polyurethane PU Cote massager, cap, ABS plastic with silver plating decorative ring. 3.75 inches by 1 inch. Vibrating sex toy requires 2 AAA batteries, not included.