What's accessories the sensory box set included? The sensory bin included 2.2 lbs play sand, about 20000pcs water beads,2 sandbox,12 Sea Animal Toys,4 Sand Molds,1 strainer, 1 shovel, 1 water beads picker,1 inflatable tube and 2 egg. Can play the water beads and sensory sand at the same time? This sensory bin with lid equipped with 2 sandbox to allow multiple players to play the water beads and sensory sand together with less mess for parents. (Tips: Do not mix the sand and water beads otherwise it will hard to pick separately) How to play the soft water beads? 1.Add 1 bag bead and half of water in plastic container. 2.Beads will soak in water for 4-6 hours to fully grow. 3. Kids can use the strainer spoon to scoop up and drain any extra water or picker to pick some beads and ocean animal figure in the egg. Is the sand and water beads reusable? It is reusable. You can keep the sand in the sandbox after each use. The water beads might be shrunk in cool and dry place and can be back to normal size if under in water again. What's size of the 2 sandbox? The inflatable water mat is about 14.7*8.66 inch and the sandbox with lid is about 15.1*9.72*2.55 inch.