Features • Enhanced Page Turning: Designed with 30 holes, this spiral binding coil allows for smoother page turning, making reading and writing effortless • Customizable Length: Featuring a simple manual opening and closing mechanism, easily adjust the binding spiral to your desired length for optimal paper storage • High Capacity Storage: With the ability to hold up to 100 sheets, this binding spine is perfect for use in offices, classrooms, libraries, and more • Durable Plastic Construction: Made from premium transparent plastic, this sheet coil resists deformation and ensures long-term use for all your binding needs • Convenient 10-Piece Set: Includes 10 spiral binding coils, providing ample quantity for easy replacement of damaged units while keeping your projects organized Features: 1、For Your Paper: Designed to have 30 holes, the A4 spiral binding coil enables smoother page turning for easier reading and writing. 2、Better Binding: Simple manual opening and closing, you can also remove the coil to adjust to the preferred length for paper storage. 3、Large Capacity: Able to clip a large amount of sheets up to 100pcs, the binding spine suits for office, classroom, library and so on. 4、Great Material: Using premium plastic material with transparent colour, not easy to deform, very with and long uses. 5、10Pcs in Total: There are 10pcs spiral binding coil in the set, and the large quantity will simplify the replacement of damaged ones. Specification: Item Type: Spiral Binding Coil Product Material: ABS Product Colour: Transparent Package List: 10 x Spiral Binding Coil Package List 10 x Spiral Binding Coil