Lets see. Ive got a 75mm spine, and I can hold up to 400 sheets of paper | Ive got a handy case hole, which means you can easily pull me down off a shelf | And if you drop me? Dont worry. Ive got a clip to hold your papers in place, and although Im light, Im tough too. Im even moisture resistant! | Light, bright and strong | OEM: 8001001