Features Smoother Page Turning: The 1m inner diameter of the spiral binding coil ensures effortless page turning, enhancing reading and writing experiences. Customizable Length: Easily install, remove, and trim the binding comb to your desired length, providing flexibility for efficient storage. High Capacity: Capable of clipping a large number of sheets, this binding spine is ideal for office, classroom, and library use, promoting organization and neatness. Premium Material: Crafted from durable, corrosion-resistant plastic in an attractive pink color, ensuring long-lasting performance and aesthetic appeal. Convenient Set: With 20pcs of spiral binding coil included, this set simplifies the replacement of damaged coils, offering convenience and value. 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