These storage trays are designed to neatly organize all your letter-sized handouts, booklets and papers. The bright colors are ideal for STEM or STEAM organization. The easy-to-grip comfort edges are perfectly sized for big and small hands. Made of nonporous plastic, these trays are dishwasher safe and drop resistant. The included lids make these trays stackable and protect their contents. Measures 10" long x 13" wide x 3" deep.