Contained in an aluminum servo case is a powerful winch and integrated controller for simple and convenient operation from a 3rd channel. In fact, it drops into the Element chassis (as well as many other 1/10 crawlers) and is easily controlled by the standard third channel on the Element RTR transmitter. High Torque Digital Coreless Servo Winch with Built-In, Pre-Programmed Winch Controller: Submarine Waterproof Operating Voltage: 4.8V-8.4V 7075 Aluminum CNC-Machined Spool w/Clear Finish 7' Silicone Coated Steel Braided Line, w/Scale Recovery Hook Internal Steel Gears All CNC Aluminum Casing Anodized Color: REEFS GRAY Bearing Type: 2BB Weight: 2.84oz Dimension: 1.57 x .79 x 1.5 (LxWxH) Torque: 405oz @ 6.0v / 450oz @ 7.4v / 480oz @ 8.4v Speed: .11sec @ 6.0v / .10sec @ 7.4v / .09sec @ 8.4v Spline: 25T BEC: Not Required