Features • Long-Lasting Durability: Crafted from sturdy plastic, these binding spirals ensure your documents are securely compiled and preserved for extended periods of time • User-Friendly Binding: Designed for manual binding, these spirals can be easily operated by anyone, making it ideal for offices, students, and individual projects • Smooth Page Turning: With excellent gloss and strong adhesion, these binding spirals provide wear and aging resistance, ensuring smooth page turning without breakage • Versatile Size: Featuring a 19mm inner diameter, these binding coils are perfect for A4 and A5 notebooks, catering to the needs of both students and teachers • Ample Quantity: Each package includes 20 binding spirals, providing you with plenty of replacements for all your binding needs, enhancing convenience and efficiency Features: 1、 WITH LONG LIFE: and sturdy plastic binding spirals allow you to easily compile paper and store for long periods of time 2、CONVENIENT BINDING METHOD: Can be manually bound by punching suitable holes, which can be easily operated by any office, student party, and individual 3、GOOD GLOSS WITHOUT BREAKAGE: Possess good gloss, strong adhesion, wear resistance, resistance, aging resistance, not easy to break and fade, smooth page turning, can be used repeatedly 4、19MM INNER DIAMETER: Stationery accessories binding consumables, inner diameter for 19mm, suitable for students and teachers 5、20PCS IN TOTAL: The package contain a total of 20pcs binding spirals, enough for you to replace and use, very convenient Specification: Item Type: Plastic Spiral Binding Coils Inner Diameter: Approx. 19mm / 0.75in Type: Stationery accessories binding consumables Package List: 20 x Plastic Spiral Binding Coils Package List 20 x Plastic Spiral Binding Coils