Add the power of Jet Fan Technology to your string trimmer with the RYOBI Expand-It Jet Fan Blower. The 3 Stage Fan Design provides clearing power up to 475 CFM and 140 MPH to tackle debris on walkways, hard surfaces and grassy areas. The RYOBI Expand-It Jet Fan Blower is attachment capable and is compatible with all Expand-It power heads to save you time, space and money. Attachment capable fits RYOBI, Toro, weed eater, troy bilt and other universal branded fit trimmers 475 CFM and 140 MPH: ideal for hard surfaces and dry grass Jet fan technology: 3-stage fan design for maximum clearing power Perfect for wet and dry leaves on any surface