The Tantus Beginners Gag is perfect for gag training or even experienced players. It fits comfortably in the mouth and covers the outside lips. The 100% silicone material gives it a comfort level like no other gag and helps prevent rawness in the creases of your mouth. Caution drool is imminent! The Tantus Beginners Gag measures 1 1/2" wide and inserts into the mouth about 2" deep.