Millions of plastic drinks bottles are thrown away every day. Help save the Earth by re-using two plastic bottles as floats for this model catamaran. Construct a cool catamaran with this unique science project. Watch your catamaran skim across the water on its pop-bottle floats, pushed by its spinning propeller.

Contains 2 float supports, 1 top cover, 2 terminal caps, screws, 1 propeller, 1 crossbeam, 2 plastic straps, 1 battery case with cover, switch and wires, motor with wires and detailed instructions. (2 x 'AAA' 1.5 volt batteries are required but not included) User need to recycle two 1-litre or 0.5-litre plastic drink bottle to complete the project.