Alpha - M/B with Black Base (with Arm)The Alpha medium back chair is a fully ergonomic office solution that combines everyday functionality with comfort. It features a heavy duty 4 lever mechanism, enabling independent adjustment of seat tilt, back angle, and seat height to suit individual user needs. The ratchet back height adjustment supports tailored lumbar alignment, while the gas lift mechanism allows for smooth and reliable height adjustment. Upholstered in durable black PU leather