Features Durable and Sturdy: These plastic binding spines are durable and sturdy, ensuring long-lasting use and protection for your documents. Easy Manual Binding: Can be manually bound by punching suitable holes, making it easy for office, students, and individuals to use. Glossy and Resilient: Possess good gloss, strong adhesion, wear resistance, and smooth page turning, ensuring they are not easy to break, fade, or age, providing long-term use and professional presentation. 1m Inner Diameter: Stationery accessories binding consumables with a 1m inner diameter, suitable for students and teachers. Convenient 10pcs Pack: The package contains a total of 10pcs binding spines, providing enough for replacements and convenient use. Specification: Item Type: Binding Spines Inner Diameter: Approx. 1m / 0.51in Type: Stationery accessories binding consumables Package List: 10 x Binding Spines Package List 10 x Binding Spines