Features Versatile 34 Hole Design: This plastic binding spine features a 34 hole design with a 12mm inner diameter, capable of securely binding about 85 sheets of paper, offering versatile usage for various binding needs. Durable Plastic Material: Crafted from high-quality plastic, these binding rings are reusable, lightweight, and exhibit excellent toughness, wear, and aging resistance, ensuring long-lasting durability and reliable performance. Glossy and Adhesive: Boasting a glossy and strong adhesion, these binding rings are resistant to breakage and fading, providing a professional and long-lasting binding solution for your documents. Easy Manual Installation: Simple to install by punching appropriate holes in the paper, these binding rings are suitable for office, school, or home use, adding convenience and practicality to your binding process. Set of 10 Detachable Rings: This set includes 10 detachable split binding loops, providing a sufficient quantity for easy use and replacement, offering a convenient and accessible binding solution. Specification: Item Type: Binding Spine Inner Diameter: Approx. 12mm / 0.47in Number of Holes: 34 Holes Binding Pages: 12mm 85 sheets (for reference) Package List: 10 x Binding Spines Package List 10 x Binding Spines