More details and link : www.amazon.com Product Features * Unmatched Durability - Virtually Maintenance Free * 20 Level Patented Variable Fluid Resistance * World's Most Comfortable Seat at "Office Chair" Height * Manufacturer Warranty: 10 Years Frame, 3 Years Polycarbonate Tank & Seals, 2 Years Mechanical & All Other Components * Footprint: 75" x 28" www.amazon.com