Perfect Size: about 15mm wide, 37mm long, 4mm thick, hole: 8.5 x 6mm. It will easily adapt to your daily needs. Quality Materials: These clasps are made of high quality alloy. They are durable and rustproof. They easily clip to your purse or belt loop, they can also hold car remotes. 360 Degree Swivel: Equipped with full 360 degree swivel to prevent tangling, snaps securely so your items won't fall out. Multifunctional Hook Clip : Suitable for organizing your car keys, making lanyards, zippers, badge holder, purse, or other craft hobbies. Can also be used for kids' art projects, hanging curtains and displaying photos. The creative possibilities are endless. Suitable for Crafts: They are ideal for DIY, art and keychain projects. They are perfect for making items such as snap buttons or embroidered keychains. It can also be used for small sewing projects attached to handbags or belts.