Expandable Base & Adjustable Handle: This folding hand truck has an extendable base for larger loads and a telescoping handle up to 36.2 in. Size: 43.9 x 16.3 x 15.1 in; expanded: 43.9 x 16.3 x 36.4 in, giving extra space and comfortable height Smooth & Stable Movement: This hand truck dolly features rubber directional wheels for stability on various surfaces and 360° swivel wheels for flexible movement. Combined with non-slip handles, it reduces pushing effort even when fully loaded Heavy-Duty Steel Construction: This portable trolley dolly is made of high-strength alloy steel for stability and durability. It resists deformation during heavy load transport, making it ideal for factories, warehouses, and construction sites 2-in-1 Flexible Use: This truck dolly can be used as an upright 2-wheel dolly or a 4-wheel platform truck, allowing quick mode switching in seconds. Adjustable handles and base fit different load sizes and heights for delivery, moving, or daily transport with ease Easy Switch & Use: Get a heavy-duty 2-wheel hand truck and 4-wheel platform cart in one. Switch in seconds without tools. Folded size: 34.2 x 16.3 x 3.9 in. Durable, foldable, easy to carry and store in trunk, closet, or under bed, built for moving heavy loads