Oregon 55-265 Speed Feed 2 Line Trimmer Head 4 1/2 Inch Straight Shaft
This 2-Line Speed-Feed 4-1/2-inch Trimmer Head only takes 30 seconds or less to load.  There is no disassembly required.  Just slide line through the head until half of the amount to be added is on each side of the head, grasp the easy grip collar and wind line in.  This rugged semi-automatic head is designed for medium to heavy-duty application.  Mounts to most straight shaft trimmers using 7 Mil by 1.0 right hand male, 8 Mil by 1.25 left hand, and 10 Mil by 125 left hand.