The RYOBI EXPAND-IT 475 CFM Blower Attachment is part of the RYOBI EXPAND-IT Attachment System. Easily transform your attachment capable string trimmer into a blower saving money, time, and space. This blower achieves 475 CFM & 140 MPH making it ideal for tackling light applications such as hard surfaces and dry leaves. The RYOBI EXPAND-IT 475 CFM Blower Attachment is compatible with most gas & cordless attachment capable systems. It’s backed by the RYOBI 3-Year Manufacturer's Warranty and includes RYAXA22 Blower Attachment, Hanger Cap, and Operator’s Manual.