... four wheels 4)good quality and best price folding platform hand trolleyLoad:300kgCastor:5"Wheel:four wheelsBody Size:863X209X916x616mm1.We ... have own factory,dealing with platform hand truck,hand trolley,wheelbarrow,rubberwheeltool cart,motorcycle tyre and so on2 ... .All raw material of Platform hand truck are good quality3.We are an professional manufacturer ...