About this item 6 ring binder's material is stainless steel, nickel-plated finish, 2cm inner diameter can hold 80-100 sheets A6 filler paper Multifunctional, hidden compartments and card pockets and pen loop on two sides, suitable for storing pen, passports, ID cards, bank cards, and other important things Portable, 7.48 x 5.2 inch, lightweight easy to carry, convenient for home, office, school and travel, easily fits in your handbag, backpack, suitcase or desk