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