FEATURES: Pure Silicone bone gag with sturdy buckle closures Soft comfortable and totally adjustable design Thick and durable camo fabric on one side with comfortable vegan leather on the other Heavy-duty hardware MATERIALS: Silicone (bone ring) Cotton (fabric) PU (strap lining) Nickel-Free and Non-Tarnishing Iron (buckle rings) Nickel-Free and Non-Tarnishing Copper (rivets) MEASUREMENTS: 5" x 1"/12.75 cm x 2.5 cm (bone gag)