Features Smoother Page Turning: The 1m inner diameter of the spiral binding coil facilitates effortless page turning, enhancing the reading and writing experience. Customizable Length: Easily install, remove, and cut the binding comb to tailor it to your specific storage needs, providing better binding flexibility. High Sheet Capacity: Capable of clipping a large number of sheets, this binding spine is ideal for office, classroom, and library use, ensuring efficient organization. Premium Durability: Crafted from high-quality plastic material, the binding coil boasts exceptional durability, resistance to deformation, corrosion, and prolonged use. Bulk Quantity: The set includes 20pcs of spiral binding coil, simplifying the replacement of damaged ones and offering long-term convenience. Specification: Item Type: Spiral Binding Coil Inner Diameter: Approx. 1m / 0.51in Type: Stationery accessories binding consumables. Package List: 20 x Spiral Binding Coil Package List 20 x Spiral Binding Coil