Give your yard work that clean, finished look with the PRORUN® 25.4cc 17″ Gas Attachment Capable String Trimmer. This powerful 2-cycle 25.4cc engine provides extended length for those hard-to-reach places. With a wide, 17-in cutting swath, trimming is complete in no time. Starting is simple with the spring-assist pull cord that requires 40% less effort. A simple tap on the ground and the bump-feed cutting head advances more line.