Thanks to its unique 2-in-1 design, this Harper PJDY2223A Steel Tough hand truck / platform truck is a versatile solution for all of your object transportation needs! Haul large products or stacks of items quickly in its upright configuration, or convert it into a 4-wheeled platform truck when you need it! 8" x 1 3/4" mold-on rubber tires provide a smooth ride and add cushion for going over curbs, and 3" polyolefin swivel casters add mobility in the platform truck configuration. This truck also boasts an innovative glass-filled nylon frame that offers the strength of industrial metals at a fraction of the weight, letting it handle up to 400 lb. in its platform configuration (300 lb. in upright configuration). The base plate and handles are made of steel. For added convenience, this truck is compact enough to fit in most car trunks, and it ships assembled so you can get started using it right away.