The Husqvarna 967680502 129LK 17 in. 27.6cc 2-Cycle Gas Straight Shaft String Trimmer Power Head is a multi-purpose power head that features a powerful 27cc engine and professional quality combined with a focus on ease of use. Smart Start makes the string trimmer power head easy to start. The automatic stop return switch automatically resets to the ON position for trouble-free restarts of the trimmer power head. Apart from a trimmer attachment, the trimmer power head can easily be equipped with a number of other pro-quality tools: blower, pole saw, cultivator, hedge trimmer and edger.