Our executive ergonomic chair integrates the wide headrest, humanized lumbar support, thick seat, and padded armrests to provide comfort to relieve the fatigue and pressure of working. 6 vibration massage options for the upper back, lumbar, and thigh gives you more comfortable experiences. The durable PU/PVC leather combines with the high-resilience sponge and high-elasticity coil spring inside to give ultra comfort. The 5-claw base forms a sturdy bottom construction to support up to 226kg. The 4-stage pneumatic rod is designed for smooth height adjustment. The office chair can rate 360° with low noise and no scratches. A multifunctional and practical computer chair for office workers, friends or students to provide protective support and care!.