An elegant collar of brilliant steel polished to a bright silver finish. The collar closes with a magnetic locking pin and connecting clasp. Two nipple clamps are attached to the front of the collar by a polished stainless steel chain 12 inches (30cm) The nipple clamps are spring loaded with tensions adjustments for just the right amount of pressure for the occasion. The collar circumference is 15 inches. The entire set is made of jewel like polished stainless steel. Additional information: Polished Stainless Steel. Adjustable spring loaded nipple clamps. Circumference 17.75 inches, Diameter 5.75 inches. Height 2 inches. Details: Weight 1.2 pounds, Color Stainless Steel.