The Master Series inflatable dildo gag is sure to give you detachment from your sub. Then unleash the inner desires, pleasures and pain you both crave. With a strap that fits heads between 16 inches and 21 inches in circumference, 0.75 inches in width. A penis gag inflated to 2.5 inches in length, 2 inches in diameter and a quick dial release. A truly sinful treasure for anyone's collection chest.