This set includes (1) Makita 125729-8 Blower Extension Tube and (1) Makita 451753-8 Flat End Nozzle. These attachments are meant to extend the blower tube/pipe closer to the ground for improved operator comfort during use. The Blower Extension Tube features a narrow profile that improves air speed for removing heavier debris such as wet leaves. The Flat End Nozzle adds the function of wide angle air dispersion. These attachments install quickly and easily onto Makita MM4 4-stroke gas powered (not battery) Hand Held Blower (sold separately).