Size: approx. 9.5mm wide, 18mm long, Hole: 2mm, pack of 50pcs black and antique bronze plated. Great accessories for jewelry making and crafting,high quality durable lobster claw clasps ensure a solid closure. Opens and closes easily and smoothly, closure of curve lobster clasps is very easy and fit for most jump rings and chain. Perfect for your DIY jewelry or repairing fit necklaces and bracelets, pendant, charms, anklets, earrings, crafts, etc Multi-purpose silver hook clip also can be used for DIY key ring design, key chain making, kids art projects, hanging curtains, and displaying photographs, etc Specification: Material: Zinc Alloy Color: Golden , Silver Package Includes: 50 Pieces Lobster Clasps Keychians Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm error in size.