Industrial-Grade Wheels: Trolley Cart equipped with two 8 tires and two 3 in swivel casters, this hand truck offers thousands of cycles without damage or deformation. The tires ensure smooth operation under any load, combining wear resistance with superior maneuverability for heavy-duty applications.2 in-1 Convertible Design: Hand truck dolly's convertible feature delivers flexibility and ease of use. By sliding the handle out of one set of tubes and into the opposite set, you can effortlessly switch it between a 2-wheeled hand truck and a 4-wheeled platform cart.Industrial-Grade Construction: Convertible hand truck constructed from spray-finished metal with welded joints for added sturdiness, this platform cart combines high-strength performance with deformation resistance. The 2-wheel hand truck supports 700 LBS, while the 4-wheel configuration withstands 800 LBS, balancing capacity and durability.Effortless Assembly & Compact Storage: Hand truck with a minimal four-wheel installation process, this trolley assembles in minutes as per the manual. The 2-wheel configuration collapses to a 40 in minimum height, enabling easy carrying and space-saving storage.Heavy-Duty Versatility: Convertible dolly engineered for rugged performance, which is perfect for indoor/outdoor loading and carrying in warehouses, gardens, construction sites, supermarkets, and offices. Its compact design also enables easy storage and organization.