The Autowinder II replacement bump feed trimmer head eliminates tangled spools with its easy feed technology. For easy line changes, simply insert the line and crank the bump knob. You get the continuous cutting benefit of a bump head without having to open the head to change the line. The Autowinder II works with most gas trimmers and select high voltage cordless trimmers.
May cause Cancer and/or Reproductive Harm - www.P65Warnings.ca.gov