RYOBI Expand-It 40V attachment power head and shaft. This tool worked as of two years ago. I no longer have the battery. That's why it is listed as parts, because I have not been able to test it. Has been stored in shed. Have no reason to believe it does not work. It also comes with the Expand-It Blower too, but it has some damage. It was still functional at last use, but based on the crack on it, I did not even include it in the listing but it will come with it.