Entice Accessories Tiered Intimate Clamps 2 multi-use designer clamps with high quality tiered chain for added sensuality. Fully adjustable clamps with soft, comfortable pads. Non-tarnishing, Nickel-Free. Dimensions: 2.25 inches by 1.25 inches nipple clamps, 10.5 inches chain. Materials: Nickel-Free Iron clamps, chain, Phthalate-Free PVC pads.