The ryobi rlt1830h13 one43 18v hybrid grass trimmer uses innovative hybrid power which allows seamless transition between corded or cordless power has a vertebrae design for improved comfort during use offers powerful cutting with 16mm line and adjustable cutting width from 25 30cm for great versatility and run time optimisation uses an auto line feed system for added convience easy edge feature allows the user to quickly transfer between edging and trimming modes supplied with 1 x 18 volt 1