Provides single handed manoeuvrability, launching and retrieval of small lightweight boats, inflatables, aluminium car toppers up to 100kg in total weight. Solid 85mm wide wheels move easily over a variety of surfaces such as packed sand or gravel, tidal areas, grass, concrete boat ramps and bitumen car parks. Simple spring action design allows the wheels to be easily flipped into the down position for boat movement. Simply flip up to store when boat is in the water. Sold as a pair.