CH-317B★Backrest: PA back frame, fixed lumbar support★Seat: Shaped sponge seat, with cushion sliding forward and backward★Armrest: PU surface 4D lifting armrest★Chassis: Four-speed locking chassis★Gas rod: 85mm stroke, 40mm countersunk black three-stage gas rod★Chair feet: 340mm black PA five-star feet★Chair wheels: 60/25 black PA wheels Return to product list