- This LawnMaster trimmer is cordless, so you can cut grass and weeds with no cable in your way- Its 3 in 1 function lets you trim, edge and get into awkward spots all with one tool- The 24 V battery's got enough power to handle lawns up to about 300 m² - The automatic line feed lets you trim faster - there's no need to adjust the spool yourself- It has a 25 cm cutting width, so you can trim big swathes in one go- With a telescopic shaft and twist-to-edge head, you adjust the height and switch modes easily