Use the pump to transport water from the base of the wall board back to the top of the chute where it will flow freely. Supplied with a combination of 45 and 90 joints. Great STEM activity, teaching children about gravity, angles and water flow. Supplied with 2 buckets, 2 ladles and 12 small hollow balls for extra play value. Set includes 2 grey trays. Large blue tray shown in image not included. Manufactured from treated pinewood with strong PVC and plastic piping. 1400 (1030mm excluding leaf) x 1300 x 850mm (h x w x d). Board 120mm depth. Age 3+.