Gamma X-ES Tennis Stringing Machine, Blue/Silver Electric constant pull tensioner (9 to 90 lb / 4 to 43 kg). Foot pedal switch for Hands Free operation. Strong, light-weight aluminum extrusion construction includes base with built-in tool tray and drawers. Includes Tools (Pathfinder Awl, Straight Awl, Hex Wrench Set, Straight Pliers, Razor Knife). 5 Year Limited Warranty.