Jonti-Craft® See-Thru Sand and Light CoverGive children the thrill of combining both sensory and light. This handy cover fits over the top of larger sized Jonti Craft light tables and has a see thru bottom, which is especially great for exploring sand and light. It helps to protect the surface of the light table and the 3 tall side rails contain messy media. Plus, it fits over the edge of the light table to ensure a stable surface and is large enough to accommodate groups of children.