Now you can play with sand indoors and not make a mess! Finally, a sand that feels and acts like wet sand, but is non-toxic, allergen free and does not contain latex. Mold like dough, never dries out and is always reusable. The inflatable, high border tray not onlys serves as a dedicated work area, but can be folded up with the sand in it and carried to any location. Just open and you are ready to play with sand. This tray has a clear sleeve at the bottom, so mazes or letters of the alphabet or any paper can be slipped in and fingers trace the design through the sand. So many fun, educational and therapeutic activities can be done with this product! Especially good for sensory and strengthening of hands and arms. Starter kit comes with 2 pounds of sand, a set of 6 molds ideal for making castles, houses and other architectual buildings, 2 carving tools and the inflatable, high border tray. 2 lb bags of sand are also available. Can be sterilized after each use...simply spread the sand out in the tray, spray the sand with any type of antibacterial disinfectant and let it air dry. Try it and see!