Master Series Silicone Dog Bone Bit Gag Black. This inhibiting bone gag will help you train and control your pet comfortably. Made of premium silicone, this semi-realistic dog bone gag consists of two adjustable 12 inch silicone straps that are connected to the bone by a metal ring at each ens. The black colored gag measures 6 inches in length and 1 inch thick, giving them a good size bit to bite on while in training. The back as a rolled buckle which allows you to lock the gag in place with the addition of a small padlock. Explore the many dimensions of puppy play with this devious bone gag from the Kanine Collection from Master Series. Measurements 25 inches in total length, gag measures 6 inches in length and 1 inch in diameter. Materials Silicone, metal.. Color Black. Please note locks sold separately. One size fits most. Adjustable. Buckle closure.