Item Type: Spiral Binding Coil <br>Inner Diameter: Approx. 13mm / 0.51in <br>Type: Stationery accessories binding consumables.<br>1、For Your Paper: Designed to have 13mm inner diameter, the spiral binding coil enables smoother page turning for reading and writing. <br>2、Better Binding: Easy to install and remove, you can also cut the binding comb into your preferred length for your needs of storage. <br>3、Large Capacity: Able to clip a large amount of sheets, the binding spine suits perfectly for office, classroom, library and so on. <br>4、Great Material: Made of premium plastic material with pretty colour, not easy to deform and very durable with corrosion and long use. <br>5、20Pcs in Total: There are 20pcs spiral binding coil in the set, and the large quantity will simplify the replacement of damaged ones.20 x <br> <br>Spiral Binding Coil