DescriptionThese heavy-duty split rings are made of premium iron material, hard and strong, rustproof and erosion resistance. Closed ring buckles design are very safe to use, stay securely closed, you don't worry that your the clips ornaments or decorations off from it.Feature- Color: Ancient Cyan Color. - Material: Iron. - External Diameter: 4-10mm. - Package Size: About 15x10x4cm. - This set of buckles contain 4-10mm unequal-sized iron circle rings, about 100g. - Made of premium iron material, hard and strong, rustproof and erosion resistance. - Glossy and shiny, safe to use. - Suitable for making crafts or school projects or simple hamdmade jewelry. - Perfect for DIY handmade accessories, such as key chains, belts, backpacks and collars. - Also a great gift for DIY lovers.