2-in-1 Design Multifunction Only takes 5 seconds to switch to a 2-wheeled upright cart or a 4-wheeled platbed cart.The shovel at the collapsible dolly rear can also be opened or closed.he thoughtful design and excellent details of the folding hand truck dolly can meet your diverse needs in different scenarios Heavy Load & Durable Folding trolley is composed of high quality metal tube and odorless PP material frame structure, which conforms to the ergonomic mechanical design. Thickened steel handle, it can be adjusted according to needs.The padded top handle provides a comfortable grip while in use. 4-wheel flatbed cart: Capacity 330 lbs, 2-wheel trolley: Capacity 220 lbs Quiet & Flexible Rubber Wheels The wheels are made of rubber, 2 back wheels are engineered with 360-degree swivel functionality, which increases load capacity and stability, Large and small wheels are designed for different types of roads, TPR wheels minimize harsh noise. Please note: When folded after use,