Dear Sir/Madam, Material:Synthetic Leather Folded:No Style:Swivel Chair,Executive Chair,Lift Chair Cover:Environmental PU leather cover Foam:Molded memory foam Frame:Sturdy metal frame construction Armrest:3D adjustable armrests Back angle:180 degree Mechanism:butterfly mechanism Gaslift:Class 4 gas lift support up to 150KGS Wheel:PU cover nylon casters Chair base:Stable 5-star metal base Color:5 different colors choices Show More