Excellent PP Material: This book binder spine is made of high-quality PP material, which is durable and abrasion-resistant, ensuring long-lasting use and reliable binding performance. Cuttable Design: The PP comb binding spine features a cuttable design, allowing you to easily trim it with scissors to fit your specific requirements. You can add or remove pages as needed. Easy to Use: This binder comb spine is simple to use—just insert it through the punched holes and snap it closed. No complicated tools or procedures are required, making the binding process quick and convenient. Good Compatibility: This binder comb is compatible with 9-hole B5, 6-hole A5, 6-hole A6, and 6-hole A7 paper, making it practical for organizing various types of documents. Wide Application: Suitable for teachers, students, professionals, and craft enthusiasts, this comb binding ring is ideal for binding reports, presentations, notebooks, and other documents.