Harmony - Outdoor Sorting Table and LidThe Sorting and Sand Bench table is extremely versatile as it can be used outside in the sand pit or inside sorting counters, marbles, dice, buttons, etc. Children experience the tactile feel of this set along with learning about shapes or colours. The Sorting and Sand Bench table comes complete with wooden lid that can be attached to clips on the side of the unit when sorting trays are being used, otherwise the top of the lid can transform this unit