Features: Made of zinc alloy, rust-proof and wear-resistant, strong and durable. Reasonable structure, can be rotated 360 degrees, easy to grip. Would be great for simply making keyrings or using these keyrings for a belt to collar connection. Each keychain hook clip is designed to clip onto a swivel hook and D-ring for easy installation and use. They are the best choice for wallets, handbags and for key chains. MULTI-PURPOSE: These keychain sets can be used to make tote bags, dog collars, shoulder straps, for cat hammocks, puppy harnesses, for key chains, jeans skirt belts, armor, tote bags, lanyards and other DIY crafts. Perfect for DIYing your special and unique handicraft gift for someone, like sewing a lanyard for a friend gift! Package includes: 30 Pcs Metal Buckles. This is enough for your craft projects and everyday needs. Package Includes: 30Pcs Metal Buckles Specifications: Material: Zinc Alloy Color: Silver/Gold/Black Size: As Pictured note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.