[Package Include]100pcs lanyard hooks, about 9mm (0.35 inch) wide, 25mm long (0.98 inch), 3mm thick, hole: 5x4mm. [Material]Made of quality iron in antique bronze color, they are durable and strong, they are durable and strong for jewelry and crafts making. Not only can they be easily opened and closed, but they can also securely hold your items from falling out. [Wide Application]Metal spring hooks can be applied for jewelry making, key ring hooks, zippers, bag purse hooks, bracelet clasps, lanyard ID cards, chain buckles, small pet hammocks, toys accessories, wallets, belt clasps and more. You may come up with various ideas and designs to apply these practical clasps. [Easy to Work with]Simply press the spring to open and it will automatically close when released. These snap hooks are easy to open and close smoothly, great for attaching small items to your purse or belt loops with tight grip. [DIY Crafts]Add some pendants, dangle charms, beads, tassel and others to these spring ring clasps to be personalized dangle pendants, you can hang them on anywhere you want for decoration. Metal spring hooks are made for easily attaching different parts to lanyards and key chains. Suitable for wallets, crafts, zippers, lanyard ID cards, key chains, pet tags, small pet hammocks, jewelry design, etc. Size: 25x9mm Product includes: 100x buckle