Details: [Adjustable Flip-Up Armrests]Featuring flip-up adjustable armrests, this crisscross chair tucks neatly under desks to maximize workspace versatility. It also accommodates relaxed postures—sit cross-legged or curled up comfortably in this accent piece. Both seat cushion and backrest boast a curved design, easing pressure on the back and hips while delivering robust lumbar support. [Soft, Plush Cushioning]The office chair’s seat and backrest are padded with thick, high-rebound sponge and wrapped in waterproof faux leather. The backrest is ergonomically shaped to align with the spine’s natural curve, helping correct posture, minimize fatigue and long-sitting injuries, and enhance work productivity. [Versatile & User-Friendly]This cross-legged chair offers 3.7 inches of height adjustment and 360° swivel functionality. A under-seat knob lets you adjust tilting tension, with a tilt range of 90° to 120°—so you can find your ideal position whether working or unwinding. [Durable & Reliable Build]Equipped with a  silent casters, the desk chair glides smoothly across floors and carpets. Its sleek black painted frame resists scratches and rust, while the  Class 3 gas lift supports up to 300 pounds—ideal for offices, bedrooms, and studies. [Simple Assembly & Space-Saving]All hardware and tools are included for easy setup; follow the instructions to assemble your leisure chair in just 15 minutes, whether at home or the office. When not in use, it slides conveniently under tables to save space.