A great storage solution for classrooms and studio space. All-purpose work/storage tray is made of sturdy, high-impact plastic that is practically unbreakable. Tray is lightweight and can conveniently nest inside other trays when not in use. Features an aluminum card holder for identification purposes. Chemical-resistant and easy to clean. Outer dimensions are 19" deep, 13-3/4" wide and 4-3/8" high.