Ergonomic comfort that supports long workdays with adaptive lumbar support and a responsive headrest. Product Features Backrest follows the natural ergonomic curve with adjustable lumbar support (up to 2 inches) to keep your spine aligned. Headrest offers 5.1 inches of height adjustment and 30° rotation to support neck and head. Space-saving design with flip-up armrests for easy sliding under the desk when not in use. Breathable nylon mesh back paired with an elastic sponge seat cushion for cool, comfortable sitting; 90°–120° recline for relaxed moments. Durable build using high-quality nylon and metal with smooth-rolling casters for steady mobility. Care: Wipe with a damp cloth and avoid harsh cleaners that could damage the mesh. Product Specifications Color: Black Material: Nylon Mesh Overall Dimensions (L × W × H): 23.43 in L × 23.43 in W Net Weight: 27.00 lbs Warranty/Includes 1 Year Limited Warranty Assembly may be required All instructions are included in the package Ships with clear assembly instructions and fast delivery.