Jelly Big Boss Vibrator 7.5 inches super veiny king of vibrators with fat head and a thick healthy shaft. Soft, yet firm realistic pink jelly material. Twist bottom power control. Unisex use. Female and Male. Made using phthalate free, non-toxic materials Thermoplastic Rubber shaft, ABS plastic. A water based lubricant is recommended. Requires AA batteries, not included. Do not leave batteries in the vibrator between uses. Always clean before and after use. Jelly Big Boss Vibrator from Nasstoys of New York.