WORX POWER SHARE 40-volt Max 13-in Straight Battery String Trimmer with Edger Conversion Capable 2 Ah (Battery and Charger Included) in the String Trimmers department at Lowes.com
Trimmer Plus 41BJLE-C902 Edger Attachment - Walmart.com
BLACK+DECKER 20V MAX Cordless Battery Powered 2-in-1 String Trimmer & Lawn Edger Kit with (1) 2.5Ah Battery & Charger LST522 - The Home Depot