W-Hobby E-buntroller was designed specifically for Electronic F1A models. New lightweight one-piece molded Carbon assembly slides on the end of the tailboom and is securely mounted to prevent any deformation or movement ensuring constant positioning of the stabilizer. Large wheel with a groove eliminates traction and ensures smooth and precise stabilizer motion even when thicker line or wire is used. Thanks to the unique design stabilizer is always positioned with the highest possible accuracy as line/wire tension does not come into play.