Risque Blue 10 Function Butt Plug. Advanced technology! Totally self-contained probes with intense vibrations that resonate throughout. Smooth, soft, unscented, and pliable. 10 powerful functions of vibration, pulsation, and escalation. Ergonomic flanged base designed for comfort. Butt plug is made using phthalate free, non-toxic materials: Thermoplastic Rubber TPR probe, ABS plastic with Polyurethane PU Cote base. Vibrating sex toy requires 2 AAA batteries, not included. Do not leave batteries in the vibrator between uses. A water based lubricant is recommended. Probe measures 3.25 inches long by 1.25 inches wide. Overall dimensions 4.25 inches long by 3.25 inches wide. Bulk weight 2.8 ounces.