CH-531B-H1S★Backrest: PA+GF back frame, with POLY mesh★Lumbar support: PA+GF lumbar support, can be raised and lowered★Seat: PP+GF seat shell, 7.5CM thick high-density shaped cotton, seat can slide 40mm forward and backward★Armrest: 4D armrest, can be raised and lowered, slid forward and backward, swung left and right, slid left and right★Chassis: Four-speed locking self-load chassis★Gas rod: 85mm stroke, 80mm countersunk black gas rod★Chair feet: 345-2 red PA feetBack to product list