CH-510BBackrest: PA+GF30% back frame, lumbar support can be raised and lowered and adjusted forward and backwardSeat: PA+GF30% seat frame, forward and backward sliding functionArmrest: 5D armrestChassis: Four-speed locking self-load chassisGas rod: 65mm stroke, 50mm countersunk gas rodChair feet: 350mm PA five-star feetChair wheels: 60/25 black PU wheels Back to product list