1. Comfort & High Quality : This ergonomic office chair features elegant gold metal armrests with upholstered padspremium scratch-resistant PU/Microfiber and a 3.9" thick high-density elastic memory foam, providing comfortable support with a 16.5" mid-back design. The sturdy base is built to last, with an SGS-certified gas lift that loads up to 330.7 lbs. Ensure comfort and durability for long time use, giving users the best quality sitting experience. 2. Premium Smooth Casters & Removable Armrests : The desk chairs with wheels includes five high-quality silent 360° ball casters, providing excellent mobility. The adjustable height, removable armrests, and dual-use base provide maximum flexibility for a customized seating journey. 3. 360° Rotation/Height Adjustment/Tilting Function : Equipped with a durable, SGS-certified pneumatic gas lift, this swivel chair allows easy height adjustments to suit different user needs, offering a personalized seating experience. The