Feature:1. 10mm 30 Holes: This is 30 hole loose leaf paper binding spine with an inner diameter of 10mm, which can hold about 65 sheets.2. Set of 10Pcs: The kit includes 10 pieces this binding spines, allowing you to easily compile paper and store for long time.3. Excellent PP Plastic: Made of excellent PP plastic, non harmless, wear resistant, rust proof, anti aging, sturdy and durable.4. Good Performance: The surface of the binding strip is glossy, which has strong adhesion, not easy to break, can turn page smoothly, and can be used repeatedly.5. Simple Binding: Binding strip can be manually bound by punching suitable holes, which can be easily operated by any office staff, student.Specification:Item Type: Loose Leaf Binding SpineMaterial: PPInner Diameter: Approx.10mm or 0.4inHole Number: 30 HolesType: Stationery Accessories Binding ConsumablesReference Number Of Pages That Can Be Bound: 10mm 65 Sheets.Package List:10 xLoose Leaf Binding Spine