The Greenworks R0201108-00 Pole Hedger Head Assembly helps restore proper trimming performance for compatible pole hedge trimmers. This replacement head assembly is designed to support the cutting blades and connect them to the pole tool's drive system. It works by transferring power from the tool to the cutting mechanism, allowing the blades to move and trim branches and foliage. Sui... https://www.wholetoolbox.com/greenworks-r0201108-00-pole-hedger-head-assembly/R0201108-00.html