7 Functions Inflatable and vibrates Expandable Butt Plug expands to 2 3/4 in. Air release button Phthalate free Waterproof Materials: PVC, Silicone, ABS 2 AAA batteries (not included) Dimensions: Buttplug Total Length: 5 in. Insertable Length: 4 in. Diameter: 4 in. Expands to 2 3/4 in. Remote Length: 3 3/4 in. Tube Length: 16 in.