Whisper Micro Bullet Vibrator is a super slim self heating Whisper quiet, soft Rubber-Cote, 2-speed bullet heats up with powerful vibrations. Ergonomic battery pack with EZ push button control. Vibrating sex toy requires 2 AA batteries not included. Do not leave batteries in the vibrator between uses. A water based lubricant is recommended. Safe and pure for body and pleasure. Made using phthalate free, non-toxic materials: ABS plastic bullet, Rubber, Polyurethane PU cote. Micro bullet vibrator measures 1.25 inches long by .25 inch wide.