Use these durable plastic trays can for sorting, organizing, puzzle work, and keeping manipulatives all together. Stack this colorful set together for convenient storage. Use the completely washable Flat Activity Trays to store art supplies or for arts and crafts activities. These trays will help to cut down on the mess from classroom activities. Trays measure 15"L x 10.5"W x 1"H. Set of 5. Includes one each of green, blue, purple, red, and yellow