Features: Unique 9" front wheel, 14" rear wheel, not easy to fall into the pit, easy to get up and down, there is a height difference threshold, and the driving is faster Can be folded without removing the lithium battery The armrests and footrests can be opened for easy passage over the bed The small rear wheel and emergency power-off switch for back-up prevention make it safer to use Aluminum alloy bracket, ultra-light and rust-proof The backrest can be folded to save storage space Solid, no need to inflate Seat cushion and backrest are waterproof and breathable tarpaulin 1 year machine maintenance, except for man-made damage (excluding lithium battery) Two seat widths of 46 cm / 50 cm are also available