1. Aluminum frame, light, strong. 2. Two-position adjustable backrest. 3. Detachable canopy. 4. Detachable front wheels with suspention. 5. Small volume after folding, easy to carry. Vehicle Width: 360mm Four4' front wheels, two4' rear wheels. Packing: 4PCS/110*26*45cm 40'HQ: 2100pcs