Inflatable and vibrating! Innovative and ergonomic design. Soft, hygienic, scentless, anti-allergenic, and easy to clean. Material: Silicone, Thermoplastic Elastomers TPE and ABS plastic. Phthalate free! With 7 levels of vibration. The butt plug requires 2 AA batteries, not included. Length 4.7 inches. Total length 6.7 inches, diameter 1.8 inches deflated.