Nasstoys of New York Orgasmic Gels Buttplug Black. The look of glass, feel of jelly. Easy to operate. Twist dial control. Variable speed. Waterproof vibrations for play outside the bedroom. Body safe Phthalates free, RoHS compliant materials: probe Thermoplastic Rubber TPR, Base ABS plastic. Length 4.5 inches overall, 3.25 inches insertable. Vibrating sex toy requires 1 AA battery, not included.