Master Series Mutiny O-Ring Gag with Nipple Clamps from XR Brands. Take them over with this dual feature silicone O-ring gag and nipple clamp set. Affixing the O-ring gag in their open mouth and securing it with the adjustable silicone strap, this gag forces your plaything to keep their mouth open, giving you full access. This devious device is taken up a notch with the addition of two connector chains that feature two adjustable pressure, bull nose style nipple clamps. Once these are affixed to the nipples of your plaything, you can control just how much pleasure or pressure they deserve. Simply adjust the level of intensity by turning the screws. The tips are coated in vinyl for added comfort and safety. Measurements collar measures 22.5 inches in circumference, 1 inch in width. Chains measure 7.5 inches in length; Clamps adjust up to 0.5 inches wide. Materials Silicone, Metal. Color Black.