Each unit is made from high quality birch plywood which is treated with a protective waterproof coating and is supplied with a wooden lid which can also be used as a work surface.Features Include:Made from birch plywood with protective waterproof coatingWheels at one end of units for easy mobilityDurable clear plastic tub with screw-on bung for emptying waterAll sand and water products are suitable for outdoors however when not in use products should be stored indoorsHeight 59cm - suitable for children 4 years +Canopy and Accessories kit available separately