Features Plastic Construction: Made from high-quality plastic, these binding spirals ensure long-lasting use, allowing you to compile and store documents securely for extended periods Easy Manual Binding: Designed for hassle- use, simply punch the appropriate holes for quick and convenient binding, for students, professionals, and home users alike Smooth Page Turning: Enjoy a seamless experience with excellent gloss and wear resistance, ensuring your pages turn smoothly without breaking or fading over time 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