... high:500MM,casters diameter,130MM:net weight:23.8kg,the maximum load,300KG:Technical features:Made of plastic floors ... or fixed),mute casters(nylon stents,iron),etc.Characteristics:the environmental protection,light weight,shock resistance and toughness,corrosion ... and other composition,make the wheel with good elasticity,wear resistance,no drag marks,casters overall impact. platform hand truck