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
Cordless grass trimmer 20V | Tool Only | WORX WG163E.9
4 X Brushcutter Trimmer Spool & Line For Worx WG163E WG163E.1 WG163.9 For Cordless Grass Trimmer Blade Cutter Lawn Trimmer - AliExpress
Best Buy: WORX WG183 40V 13-Inch Cutting Diameter Cordless Straight Shaft Grass Trimmer (2 x 2.0 Ah Batteries & 1 x Charger) Orange WG183