Eurotech Motor Mover ?

£130 ono Used caravan/trailer motor mover. Replaces jockey wheel. Simple operation - on/off switch, forward/reverse switch, control direction with handle. Connect to caravan 12volt battery. Easily moves caravan/trailer at slow walking pace. Very useful in yards, drives and on the road where space is tight. Saves effort manhandling. Although cosmetically challenged, this item is in full working order, with cables fitted with battery clamps (these could be lengthened, if necessary) and handle.