These 6 semi-translucent wedge-shaped trays fit together in a circle to keep activities contained. Use them inside our Sensory Mood Discovery Table or on their own. Great for sensory exploration, these trays can hold loose parts, water, sand and more. Practice counting and sorting. Or create miniature small world scenes. These trays are made from smooth, durable plastic. They're designed to last for years of use. Wash them clean with warm, soapy water. And they nest together for easy storage. For all ages. Size of each tray: 11.25"W x 12.1"L x 2.4"H. Size of assembled circle: 25" dia.