The Harper Quick Change 3 position lightweight steel convertible dolly and cart is the only personal assistant you need for all your home, work or office moving needs. Harpers exclusive easy-to-use Quick Change mechanism converts truck positions in seconds - no tools or pins required!. Harper exclusive quick change hand truck converts positions in seconds no tools or pins required. Quick Change is 4 trucks in 1! Use as 2 wheel dolly, 4 wheel incline truck , 4 wheel cart or 56" tall 2 wheeler. Industrial grade robotic welded heavy duty steel Frame and axle supports for long product life. 8" solid rubber wheels and 4" swivel casters for easy maneuverability. 14 x 7. 5 base plate for heavy loads. Only weighs 23 lb. Manufactured in USA.