Red 4-Pack Montessori Stackable Trays with Handles Set Cut-out handles help children easily carry the trays. Tray with Handles Trays for kids have a stackable feature makes storage and organizing a breeze. Classroom 11-7/8 x 8-5/8 x 1 plastic trays are Bright, beautiful, durable trays for art projects, water work and lots more! Set of 4 trays all in Red (also available in Blue, White, Green and Yellow, sold separately). Use for school or home to serve drinks, arts and crafts, carry toys and materials.