Optimized for extremely high performance and loads Excellent quality: The 9.1m pruning line allows you to cut a larger area of grass with a diameter of 1.65mm. The line spool has a nylon rod in the center, making it more durable and offering a longer service life than other products. Fast cutting: The automatic restoration system changes the cut of the line spool to facilitate tedious tasks compared to manual winding. It uses centrifugal and aerodynamic force to reduce resistance and achieve a fast, clean cut. Easy to install: Replacement is quick and easy thanks to the buckle, without tools.