The 3 Tier Aqueduct consists of three different height activity tables, complete with plastic trays (Due to supply issues trays are currently only available in black).  The Aqueduct bases are made from sustainably sourced hardwearing Scandinavian redwood, and are thoroughly tested to ensure they are smooth and splinter free. The Aqueduct is great to use with several mediums including sand and other play materials, but is even better for use with water, and can be linked by tubes, pipes etc to transfer water from the highest to lowest tray (not supplied)