Ergonomic Design Ergonomic design using high density cushion mould foam padding and tough steel frame for stability. HeadRest and Lumbar Pillow Additional Support for head and lumbar Class 4 Gas Lift Cylinder Top Quality Class 4 Gass lift cylinder, Focus on safety & reliability 65MM Caster Wheel Big 65mm Caster wheel, high stability and easy moving Embroidered Logo Exclusive embroiderd logo powered by Xigmatek Breathable PU Leather Comfortable and easy to clean Adjustable Angle 90 to 180 degree reclining support 2D Adjustable PU ArmRests Height Adjustment