White 4-Pack Montessori Stackable Trays with Handles Set Cut-out handles help children easily carry the trays. Stackable feature makes storage and organizing a breeze Bright, beautiful, durable plastic trays for art projects, water work and lots more! Set of 4 trays All in White (also available in Blue, Red, Green and Yellow, sold separately). Use for school or home to serve drinks, carry toys and materials.