Create you your own Sensory Pathway. The easy to assemble frame comes with pre-drilled screw holes and full instructions. Simply fasten together and fill with whatever you want – sand slime feathers etc. the list is endless! The strong durable wooden frame is made of Scandinavian Redwood from sustainable sources ideal for outdoor use. Self assemblySize: Assembled Dimensions: 1100 x 55mm Each Inner square excluding frame: 480mm