Easily convert almost any attachment capable string trimmer or power head into a super-powerful Jet Fan Blower! Whether it's clearing debris from walkways or heavy wet leaves from your yard, the RYOBI Expand-It Jet Fan Blower attachment is the right tool for the job. The 3 Stage Fan Design allows you to complete any task more efficiently by providing up to 475 CFM and 140 MPH of clearing power! Backed by a 3 year warranty, RYOBI Expand-It attachment save you space, time and money.