2 Sizes Discs: Package includes 24mm and 35mm colorful binding ring discs in 4 colors-- red, blue, green , purple, 40pcs per size, 80pcs in total. You can choose the suitable expansion discs according to your own preferences to make unique notebooks. Material: Made of plastic, durable and lightweight, safe, and not easy to break, smooth surface and and flexible design to ensure that the paper does not obtrusive when turning pages. Cute Design: Each circle discs are designed with a heart hole which make your notebook look attractive, suitable for women who love discbound notebooks. Easy to Use: just snap the discs into the punched paper. These small binding ring discs are suitable for arrange your papers, documents, notebook pages, paintings, keep them organized and look more neat and clear. Ideal Gift: These expansion discs can hold papers wells, makes the notebooks more special. Feel free to remove or add it, they can be applied as a nice gift for your friends or families who love notebook design.