This large size vibrating butt plug. 2 inches at widest point. is made from silky soft silicone and is waterproof. It has six powerful quiet functions including 3 vibration settings. 2 pulsation settings and 1 escalation setting. Control by using either the slim line remote control or by a button on the base. The remote control can be used up to over 25 feet away. Ace is rechargeable using a USB magnetic charger for convenience. The large has a maximum diameter of 1.97. The insertable is 4.92 and the neck diamter is .80.