INLAND NINJA features hand-selected premium materials as well as a robust design for even the most aggressive gamers. NINJA is developed for maximum comfort and flexibility featuring a wide range of ways to customize the position and fit. NINJA Gaming Chairs feature foam-covered rigid tubular steel interior and durable external materials, supportive and comfortable cold-cured molded foam, ultra-quiet nylon wheels for smooth gliding, class-4 hydraulic piston for precise height adjustments, and incredibly soft and supple leatherette for a premium look and feel. Also has an aluminum alloy base for long-term use, 4D adjustable armrests for personalized comfort, and 165 degrees of reclining and full tilt capability. The NINJA chair includes built-in adjustable lumbar support.