This dual-purpose hand truck seamlessly transforms between a 2-wheel dolly cart and a 4-wheel push cart, offering versatile transportation solutions for various scenarios. Constructed with heavy-duty sprayed metal and durable welded joints, it boasts high strength and resistance to deformation, ensuring long-lasting performance. With a 330 lbs capacity in 4-wheel mode and 220 lbs in 2-wheel mode, it handles heavy loads effortlessly, making it ideal for moving bulky items. The design features 8.25-inch inflatable tires for the 2-wheel setting, providing stability and smooth movement even on rough surfaces like construction sites or outdoor terrain, while the 2-inch swivel casters in 4-wheel mode offer enhanced maneuverability, perfect for navigating tight spaces in warehouses, offices, or supermarkets. Converting between modes is simple: just slide the handle from one set of tubes to the other, adapting to different load sizes and environments. Assembly is quick and easy-only four wheels need to be installed following the instructions, and the 2-wheel trolley's shortest height of 37 inches allows for convenient storage and portability. Whether for moving goods in a warehouse, transporting gardening supplies, hauling groceries, or handling materials at a construction site, this yellow and black hand truck is designed to meet both indoor and outdoor heavy-duty transportation needs, combining functionality with rugged durability. Color: Black+Yellow.