Aluminum transport wheelchair with auto-lock united brake. With this auto-lock united brake, you can stop the wheelchair simply by pulling the brake up, and don't have to hold the brake all the time when you want to stop the wheelchair. By pushing the small button, you can release the wheelchair. We also add some angles to the backrest, to make it more comfortable to sit on. With this small angle, users don't have to stuck their stomach when sitting on the wheelchair. The legrest is also extended, offers more comfort to the users. What's more, it is foladble, you can fold it and pack it in a handbag when travel, which offers great convenience.