Soft vibrating mouth with a sensual tongue that gently flutters and caresses simulates fluttering and licking of oral sex when moved over the clitoris. Removable bullet for independent use. Arouser measures 3.5 inches long by 2.25 inches wide. Vibrating bullet measures 2 inches long by 1 inch wide. Sex toy is made using phthalate free, non-toxic materials: Thermoplastic Resin TPR mouth and tongue, ABS plastic with metallic plating bullet, Polypropylene PP battery case. Oral sex simulator requires 2 AA batteries, not included.