RYOBI 40V Expand-It Cordless Battery Attachment Capable Trimmer Power Head and Sweeper Attachment w/ 4.0 Ah Battery, Charger RY40226-SWP - The Home Depot
Amazon.com : TrimmerPlus Garden Tiller, Cultivator Attachment for Compatible Gas Powered Multi-Use Outdoor Equipment (TPG720) : Patio, Lawn & Garden
RYOBI Expand-It 8 in. Brush-Cutter Trimmer Attachment RYBRC77 - The Home Depot
Troy-Bilt 41BJGC-C902 Trimmer Plus 8 in. Tine Cultivator Attachment - Walmart.com