1 Inch(25mm) Binder Rings--- The binder rings assorted sizes includes: 1 inch(1") binder rings x 30pcs, if you do not need much, this is your good choice, help you save money ! Smooth Surface, Birhgt Color, Durable Material --- These binder rings (1 inch) are made from premium material, durable and sturdy. Multi-layer nickel-plated steel ensure a smooth surface and birght color, prevent rusting. Easy to Open and Close. Hold Properly ---To provide the better binder rings, we have tested dozens of binder rings, and finally find the suitable one: easy to open and close, hold properly. Wide Application --- The pacakge includes 30pcs 1 inch (25mm) metal binder rings, you can use them to hold flashcard / flash index card, notecard, paper / books ring, textbook, scrapbook, photos, contract or file. Really helpful in your daily life.