The binders are made from rigid polypropylene sheets that are durable and washable. They do not split, rip, fray, sag or come apart at the seams. An additional side pocket conveniently holds loose documents. Available with nickel plated 2, 3 and 4 ring regular and booster mechanisms. Optional "colour dividers and indexes". An elegant polypropylene pockets. Ideal for executives, professionals and students.