Measurements: Gag measures 6 inches in length, 1 inch in diameter. Around the head strap adjusts from 20 to 26.5 inches in circumference. Over the head strap adjusts from 12.5 to 15 inches in length from O-ring. Chin strap adjusts from 4.5 to 8 inches from each O-ring.
Material: Silicone, PU Leather, metal.