Submission Collar and Nipple Clamp Union from XR Brands. Imagine the seductive combination of collar and clamp, pleasure and pressure. Master Series has your fix with Submission Collar and Clamp Union. This two in one set is made with submission in mind. The quality collar is made more comfortable with the addition of a neoprene inner lining, and secures by means of a double Velcro binding. The collar has two extra D rings, if you want to add weights, rope, or any other accessory you can imagine. This duo features a 14 inches chain that splits in two at 8 inches, attaching to the collar at a front D ring. Each chain ends at an adjustable alligator style nipple clamp, easily made tighter with thumb screws. Each clamp has a vinyl tip for added comfort and better grip. Adorn the neck of your naughty one with this striking collar, as the chain dangles seductively against their chest. Measurements collar adjusts from 14 inches to 21 inches in circumference; Clamps opens to 0.5 inch wide. Material: Neoprene, nylon, Velcro, metal, rubber. Color Black. Master Series from XR Brands.