Office DEPOT A4 size 4-hole binder white wide 4-hole ring file, holds approximately 500 sheets This product is no longer sold, but I think it's a popular item among card collectors. It's an A4 wide type that can hold 9-pocket trading card refills. I bought these in bulk in the past for collection storage, but I haven't used them and have stored them in a dark place. Although several years have passed since I purchased them, they are new and unused. Shipping costs are high, so the starting price is high... I have stock, so if anyone wants to buy in bulk, please comment. I look forward to your purchase (☆ᴗ͈ˬᴗ͈)⁾⁾⁾