4D Armrest & Stable Adult Gaming Chair: Class 4 hydraulics and 4D adjustable armrest. It has a heavy - duty aluminum base and smooth casters that won't damage the floor. Adjustable & Functional Gaming Office Chair: Offers 360 - degree swivel, adjustable armrests, tilt and swivel function, adjustable backrest angle (from 90 to 135 degrees), and adjustable height. Racing - Inspired Design: DXRacer's PC gaming chair (racing chair) provides an immersive gaming experience. Chairs support up to 275lbs or more. Durable & High - Quality Materials: Built with an all steel 0.08 in thick frame, making it heavier and more robust. Magnetic head pillow and lumbar support. Ergonomic & Comfy Gaming Chair: High - backrest design with high - quality moulded foam, offering proper support for the head, back, and hips. Well - padded seat, lumbar, and headrest cushions enhance comfort during extended gaming sessions. DXRacer Craft XL Series chairs are manufactured under strict quality standards to offer our customers the ultimate level of luxury and comfort. Our chairs are designed to heighten the gaming experience, working, and relaxing. With adjustable armrests, detachable headrest and lumbar cushions, a 135 multi-functional tilt mechanism, user can create their own optimum experience.