1. Aluminum alloy oxidation frame. 2. Seat cushion/cushion: It is made of flame-retardant black cow cloth sewn and formed, and the built-in middle sandwich is up to 600d canvas. 3. Handrail/foot pedal: The armrest can be flipped back, and the high and low foot pedals can be adjusted. 4. Rear wheel: 22 inch (55cm) high-quality PU rear wheel front wheel: 6 inch (15cm) PVC front wheel, with high-strength plastic wheels. 5. Brake structure: the knuckle brake device is lower than the seat surface after braking, which is flexible, convenient, fast and safe.