This ergonomic office chair is designed with an S-shaped high back to provide maximum support for your lumbar and shoulders. Take the pain out of your spine. With 120° rocking mode, it is ideal for relaxing after a long day of sitting. The height of this comfy chair can be easily adjusted from 19.5″-22.2″. The computer desk chair is equipped with a BIFMA durability-tested Class 3 gas lift, supporting a load capacity of up to 300 lbs. The armrests of this gaming chair can be flipped up or put down to satisfy different needs. The home office desk chair is equipped with a padded seat made of high-density shaping foam. The thickened design reduces pressure on the hips and tailbone. The mesh backrest is highly breathable. Cushion size:20.47″×17.32″. Big and tall people can use it boldly. Stability & Smooth Movement? The smooth multi-directional wheels are made of PU material, allowing for quiet and effortless movement on hardwood floors, carpet, and other floors without causing damage to them. The large 5-star-shaped base enhances stability and prevents tilting and falling. This ergonomic computer chair is suitable for office, bedroom, study, living room, and game room. It is a perfect gift choice for your husband, wife, son, friend, or family member. It’s also great for Christmas, Father’s Day, and Mother’s Day.