Use the RYOBI Expand-It Edger Attachment to transform your string trimmer into a powerful edger. Adjust the depth on the 8 in. serrated blade to help you create professional edges on different areas in your yard. Get the most out of your dual serrated edging blade by reversing it when dull to make use of fresh cutting edges and extending the life of the blade. This edger attachment can be used with RYOBI, Toro, Weed Eater, Troy Bilt, Murray, Poulan Pro Trimmers and other universal brand fit power heads and trimmers.