The ryobi rlt1825 one43 18v line trimmer has a rotating head that is perfect for edging and trimming it can complete numerous jobs around the garden efficiently and safely for added safety the auto feed line advances when the trigger is released the strimmer has a two handle design for improved user comfort easy edge technology making the switch between trimming and edging quick and easy rlt1825li 1 x 18 volt 13ah one43 18v li ion battery olt1825 bare unit batteries sold separately compatib