This 2-in-1 table is made with pressure treated wood and can be used for multiple purposes. It can store a combination of sand and water, or other sensory materials such as bubbles from dish soap, flour, dry pasta, corn meal and play dough to name a few. There is also a shelving area underneath for storage.  It can be left outside or brought inside, whatever you choose.  Table dimensions:Length - 48”Height - 21”Width - 24"