DXRacer RW106/NE Racing Series Racing Bucket Seat Office Chair Gaming Ergonomic with Lumbar Support Quality Comfortable Ergonomic Design with bonus headrest cushion & lumbar support cushion Fully Adjustable Backrest (between 90-135 degrees) 4 dimensional soft armrests fine-tunes your seating experience Durable Metal Five-Point Base with 2 Inch double caster wheels Lifetime Warranty on steel frame, 2 year warranty on parts/accessories