ergonomic chair waist support computer chair home nap comfortable long-sitting e-sports chair office seat youlansen 人体工学椅护腰电脑椅家用午睡舒适久坐电竞椅子办公室座椅优兰森

standard model: obsidian black – sponge‑foam seat – 8d armrests standard model: obsidian black sponge board seat – 8d armrests – sponge footrest standard model: cloud white – sponge wooden‑plank seat – 8d armrest standard model: cloud white — sponge‑covered wooden seat — 8d armrests — sponge footrest upgraded version: obsidian black – hollow fish-scale base – 8d armrest upgraded version: obsidian black – hollowed fish-scale seat – 8d armrests – plastic footrest upgraded version: cloud white – hollow fish-pattern seat – 8d armrest upgraded version: cloud white – hollow fish-pattern seat – 8d armrest – plastic footrest high-end model:曜黑-lattice fish-scale seat-8d armrests-active three lumbar support pillows high-end model:曜黑-lumbar support pillow with hollow fish-scale pattern-8d armrests-plastic footrest-three movable lumbar support pillows high configuration: cloud white-hollow fish pattern seat-7d armrest-activity three lumbar support pillow high-end model: cloud white – hollow fish-pattern seat – 8d lumbar support pillow – plastic footrest – adjustable three-point lumbar support ↓↓dragon pattern special web + functional style↓↓ high-value model: black frame with black mesh — hollow dragon-pattern base — 8d armrest high-value model: black frame with black mesh, hollow dragon-pattern base, 8d armrest, plastic footrest high-value model: cloud white frame with a hollow dragon-pattern base and 8d armrests high-value model: cloud white frame—hollow dragon-pattern base—8d armrest—plastic footrest special edition: black frame with black mesh – hollowed-out dragon-pattern base – 10d armrest special edition: black frame with black mesh – hollowed-out dragon-pattern base – 10d armrest – plastic footrest special: cloud white frame net-hollow dragon pattern seat-10d armrest-nylon foot special: cloud white frame net-hollow dragon pattern seat-10d armrest-plastic footrest top-of-the-line model: black frame, black mesh — hollow-out dragon-pattern seat — 10d armrests (promotion: three lumbar support pillows) top-of-the-line model: black frame, black mesh — hollow-out dragon-pattern seat — 10d armrests (with three lumbar support pillows) — plastic footrest top-of-the-line model: cloud white frame with mesh – hollow dragon-pattern base – 10d armrests (promotion includes three lumbar support pillows) top-of-the-line model: cloud white frame with mesh – hollow dragon-pattern base – 10d lumbar support pillow (promotion: three lumbar support pillows) – plastic footrest

nylon feet alloy foot