The large tub functions as a water play table (holding 15 gallons of water) or a sand table (holding over 250 lbs. of sand). Two removable tubs with lids go inside the the main tub to divide your table into multi-sensory units and store underneath the frame. There are four 4" diam. easy-glide, lockable wheels and smooth round edges. 5 year warrenty. Total size is 43" L. x 30" W. x 24" H. Ages 3 yrs. +. Assembly required.