Features • Durable Plastic Design: With long-lasting plastic construction, these binding spirals ensure your documents remain securely compiled for years without wear and tear • Easy Manual Binding: Designed for simple hole punching, these spirals can be effortlessly operated by anyone, making them perfect for students, teachers, and office use • Smooth and Glossy Finish: Featuring a high-gloss surface with strong adhesion, these spirals resist breakage and fading, allowing for seamless page turning during frequent use • Optimal 19mm Inner Diameter: Ideal for various projects, the 19mm inner diameter is compatible with A4 and A5 notebooks, providing versatility for all your binding needs • Generous 20-Pack Supply: Each package includes 20 binding spirals, offering ample supply for multiple projects, ensuring you’ll always have the right binder accessories on hand 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