110mm 30 Holes: This is 30 hole loose leaf paper binding spine with an inner diameter of 10mm, which can hold about 65 sheets. 2Set of 10Pcs: The kit includes 10 pieces this binding spines, allowing you to easily compile paper and store for long time. 3Excellent PP Plastic: Made of excellent PP plastic, non harmless, wear resistant, rust proof, anti aging, sturdy and durable. 4Good 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. 5Simple Binding: Binding strip can be manually bound by punching suitable holes, which can be easily operated by any office staff, student. 10 x LooseLeafBindingSpine Item Type:LooseLeafBindingSpineMaterial: PPInner Diameter: Approx.10mm/ 0.4inHole Number: 30 HolesType: Stationery Accessories Binding ConsumablesReference Number Of Pages That Can Be Bound: 10mm 65 Sheets