100% waterproof, totally self contained power stroker. Vibrating pleasure stroker with deep throat, noduled chamber for added sensations. Removable sleeve for easy cleaning. 30 incredible functions of vibration, pulsation and escalation. Memory chip resumes on last function used. Easy push button control. Optional multi-position hands-free suction cup swivel mount included. Safe and pure for body and pleasure made using phthalate free materials Thermoplastic Rubber TPR sleeve, Silicone button, decor, ABS plastic with polyurethane PU Cote case. 4.75 inches by 3 inches sleeve. 9 inches by 3.5 inches overall. Requires 4 AAA batteries, not included.