Harper jdcsa8543 4-in-1 convertible hand truck with solid rubber wheels – 700 lb. Capacity easily converts to four different truck positions and auto locks into place with no pins or clips to lose!! harper trucks 4-1 steel convertible hand truck provides easy conversion from a two-wheel dolly to a four-wheel 45 degree incline truck or platform truck in seconds features: heavy duty robotically welded 1 steel frame and handle 600 lbs. Two wheel dolly handle height adjusts from 47 to 56 tall easily adjusts to four wheel assist incline truck or four wheel platform truck -700 lbs. Capacity 8 solid rubber wheels and 4 swivel casters 14 x 7-1/2 base plate large 36 x 13 platform bed welded to frame wheel guards to protect load