Description These loose leaf binders are made of high-class ABS material and are durablefor long-lasting use. Binders are suitable for many purposes, such as loose-leaf, memo filing, etc. They are simple in design, but very practical to use and will give you a good experience. Features -Material:ABS -I t is not easy to break, the surface is smooth to ensure that the page does not get stuck when turning. -Plastic binder rings can be arranged flexibly, easy and convenient to to add, remove and replace notebook pages, without damaging the paper. -At the same time, bright colors can attract children's or students' attention and make them happy to DIY their own projects. -Electroplating process, fresh and unique, bright colors, suitable for the mushroom binding holes. -Great for fastening pretty document stack, index, curriculum cards, papers and keys, make them organized and not messy.Package list: 20 x Discbound Expansion Discs