Bound Nipple Clamps are for erotic and stimulating sensations. Made from nickel-free metal, Boundft.s clamps feature silicone tips for a better comfort and fit. Available in assorted shapes and colors.Product Weight: 0.92 (Oz)Package Dimensions: 4.96 x 2.8 x 0.71 (Inches)Product Material: Iron/Silicone