This RYOBI 18V ONE+ 10" String Trimmer is lightweight, easy to use and easy to store and is the perfect addition to your ONE+ tools. With an auto-feed string head, this trimmer provides a manageable 10" cut width that advances the line whenever you release the trigger. The shaft also rotates to edger mode so you can make quick work of your small lawn care projects. This kit includes 18V ONE+ 2.0 Ah battery and charger. The battery is compatible with the RYOBI 18V ONE+ system. Backed by a 3-year warranty.