GOODBYE LOCKJAW Keep quiet with ZERO complaints. The Max Comfort Gag was designed with longer scenes in mind. The silicone fins flex to match the natural position of the jaw. Nestle your teeth between the grooves...and say goodbye to lockjaw. The EZ-adjust Flex-Fit strap keeps the gag securely in place. Ergo Fins No More Lockjaw Body Safe Silicone EZ-adjust Flex Strap Total Length: 12 in. (30.5 cm) Width/Diameter: 2 in. (5.1 cm)