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″.