Adjustable Armrests: 3D Mechanism Type: Standard Mechanism Adjustable Tilt Angle: 3-18° Tilt Lock: Yes Tilt Angle Lock: No Recline angle: 180° Gas Lift Class: Class 4 gaslift Adjustable Back Angle: Yes Adjustable Lumbar Cushion: Yes Adjustable Headrest: Yes Meets/Exceeds ANSI/BIFMA Standards: Yes Recommended comfort rangeHeight: 145 cm - 170 cm; Weight: 45 - 73 kg; BMI: Not to exceed 25Hand-welded metal frameExtra small frame with anti-corrosive coating built for strength and comfort and optimized for petit body type.Premium quality automotive-grade polyurethane leather upholsteryThe premium automotive-grade upholstery keeps its beauty and quality for years.High-density cold-cured foam fillingCold cured foam provides superior support and keeps it shape for years.Ergonomic racing-style seatThe ergonomic racing-style seat provides upper legs support and sits closer to the ground to accommodate petit body types.Class 4 gasliftClass 4 gaslift is the highest grade gaslift available on the m