Incredibly powerful with 2 silver bullets. 3 intense speeds. Ergonomically curved controller with easy push button control. Safe and pure for body and pleasure made using phthalate free materials ABS plastic with polyurethane PU Cote controller, ABS plastic with silver plating bullet, decor, Silicone button. Vibrator requires 4 AAA batteries, not included. Size 2.25 inches by 1 inch each bullet.