【PREMIUM QUALITY MATERIAL】- Color: Black; Material: PVC+ Foam + Iron; Product Size: 29.1x26.8x45.3-49.2"; Seat to Floor Size: 18.1"; This executive office chair is constructed with a pneumatic gas pole, anti-explosion plate, and sturdy iron base for safety and durability. It is wrapped with PVC leather for a high-end look. 【RECLINE HEIGHT ADJUSTABLE】- The leather office chair has two adjustable parts: one for height change and the other for tilt angle adjustment. Back recline angle range: 90°-155°. Height adjustable range: 45.3-49.2". The lumbar part can be adjusted to suit your lumbar spine with a knob. 【ERGONOMIC DESIGN】- Our office executive chair is capable of reducing the pressure on your neck, back, and lumbar with a reasonable and comfortable design. Thick foam-padded foam and soft high-density pillow will give you a fabulous experience. 【HEAVY-DUTY CHAIR】- This office chair has a large load capacity of 400 lbs with 360° PU quiet casters, which is great for different sized people to enjoy it at any place, especially taller and bigger users. 【HOME COMMERCIAL USE】- This multifunctional office chair helps eliminate your pain due to sedentary sitting. It can do a great job in daily work or study, which is perfect for home, office, and conference room.