Executive Chair High Back Office Chair Knob-Control Lumbar Support Black

Executive Chair, High Back Office Chair with Knob-Control Lumbar Support, Ergonomic Desk Chair Adjustable Tilt & Height, PU Leather Swivel Rolling Chair for Working, Study, Gaming, Black Zoned Support Comfortable Recline Sturdy & Pressure-Resistant Premium Comfort Experience Easy Height Adjustment Ergonomic Design Caster Material: Rubber Casters, 3-inch Casters,Seat Width: 22.05 in / 560 mm,Main Materials: Steel + Foam + PU Leather + PVC + Wood,Weight Capacity: 500 lbs / 226.8 kg,Seat Thickness: 6.3 in / 160 mm,Item Model Number: HC-2851,Product Weight: 44.34 lbs / 20.10 kg,Gas Lift Class: Class 4,Features: Knob-style Adjustable Lumbar Support & Height, Rocking Function,Product Dimensions: 27.00 x 30.48 x 50.70 in / 685 x 774 x 1288 mm,Backrest Height: 30.3 in / 770 mm,Lift Range: 0-3.94 in / 0-100 mm