Ergonomic Office Chair Adjustable Armrest Swiveling Desk Chair Lumbar Support Mesh High Back PC E-sports Gaming Chair

high-end design: durable high-quality PP frame, 320mm chassismultiple adjustments: lumbar support, seat height, backrest tension and inclination, armrest height, fit for different body curveshigh mesh fabric backrest, breathable and comfortableergonomic support on the neck, back and headthick sponge seat cushion, soft and not tiring for sedentary usecomfortable surface: high-density sponge and 100% pure cottonair-permeable and elastic, wear-resistantweight capacity of 136kg50mm universal nylon casters, quiet and flexible 360-degree movement, floor-protectingeasy assemblyflip-up armrest, space-savingback tilting tension adjustment from 100 to 115 degrees with rocking controlmaterial: PPframe material: PP, nylon