Engineered for long gaming sessions this swivel chair pairs a 90 to 180 degree reclining backrest with a vibrating massage lumbar cushion and a detachable headrest. The 21 inch wide seat lifts up to 4 inches in height while armrests adjust 3 inches and rotate 60 degrees for personalized fit. A reinforced five-claw base supports 330 pounds and the high-density sponge cushioning resists compression for years.