Pandahall Elite 1 Box Zinc Alloy Plated Lobster Clasp and Iron Jump Rings Jewelry Findings Making Platinum Size: Clasps: about 6~13mm wide, 10~20.5mm long, 3.5~5.5mm thick, hole: 1~2mm; about 70pcs/box; JumpRings: about 6mm in diameter, 4mm inner diameter, 1mm thick; about 4g/box. Top quality product, variety of sizes Excellent size for suspending small items from delicate necklaces, bracelets, earrings, anklets. What we provide this as a low-cost alternative to precious metal, and we verify that it is Nickel, Lead, and Latex free, thus it is less likely to cause an allergic reaction. Note: the picture shown is a representation of the item, you'll receive from the actual size items. Picture may appear larger on your screen. Color may vary slightly due to the color setting of each individual monitor. Please double check the sizes before purchasing.