Gyration Sensations Gyrating Hummer Vibrator. Extreme vibrating and throbbing massager with famous scoop design and love nub. 10 powerful functions of vibration, pulsation, and escalation. Easy to operate. Push button control. Hold button for 4 seconds to turn off. Memory chip resumes on last function used. Silky smooth Satin Finish. Waterproof for play in and out of the water. Safe and pure for body and pleasure. Made using phthalate free, non-toxic materials ABS plastic with Polyurethane PU Cote massager, ABS plastic with silver plating decorative ring, Thermoplastic Elastomers TPE button. Vibrator measures 6.25 inches long by 1.25 inches wide / 16 cm x 3.25 cm. Bulk weight 3.2 ounces / 0.09kg. Vibrating sex toy requires 2 AA batteries, not included. Do not leave batteries in the vibrator between uses. A water based lubricant is recommended. Always clean before and after use.