Blue Marine Sand and Water Mill Set - 3pc. Ages 2+ / Toddler A lovely set with a shovel, a sand mold and a large mill through which both sand and water can run. The mill has a tilt and a sluice, so the child decides how much sand or water run through the wheel. The set provides many opportunities for sensory play and exploring nature at the beach or in the sandpit and strengthens the child’s fine motor skills, eye and hand coordination.