1. Hand -adjusting chair surface size (length × width): 1900mm × 580mm 2. Chair surface height: 500mm 3. Folk angle of the chair surface: 12 ° 4. Fold the angle of the back: 20 ° ~ 65 ° 5. Leg lifting adjustment range: -90 ° ~ + 10 ° 6. The size of the armrest board (length × width): 460mm × 160mm 7. Placing angle of the handrail: 0 ° ~ 45 ° 8. The armrest angle of the handrail: -10 ° 9. The distance between the handrail is adjusted: 0 ~ 100mm 10. Maximum load weight: ≥180kg 11. Self -weight: 60kg