Features PLASTIC MATERIAL: These jump rings are made of excellent plastic, which is lightweight, wear and scratch resistant and durable. Good performance: these binding combs have good surface gloss, strong adhesion, are not easy to break or fade, bind paper easily and can be stored for a long time. Easy to use: for manual binding, simply punch the corresponding holes in the paper. Suitable for use in office, school or home, practical and practical. SPECIFICATIONS Including 70 pieces plastic binding spines, 4 hole design, with 12mm inner diameter, sufficient quantity for easy use and replacement. 7 DIFFERENT COLORS These plastic jump rings are available in various transparent colors for easy identification and are used in a variety of DIY binding projects. Specification: Item Type:4 Hole Jump Rings Inner diameter: approx. 12 mm / 0.5 inches. Use: stationery accessories, binding accessories Package list: 10 x transparent colour binding rings. 10 x transparent pink jump rings. 10 x Clear Black Jump Rings 10 x Clear Orange Jump Rings 10 x transparent blue jump rings. 10 x transparent green jump rings. 10 x Clear Purple Jump Rings Package List 10 x Transparent Color Binding Rings 10 x Transparent Pink Binding Rings 10 x Transparent Black Binding Rings 10 x Transparent Orange Binding Rings 10 x Transparent Blue Binding Rings 10 x Transparent Green Binding Rings 10 x Transparent Purple Binding Rings