The WORX cordless 20v max lithium powered grass trimmer with command feed has taken grass trimming and edging to a whole new level of power and function. With the 20v of max lithium battery power, the WG163.9 provides longer run times and more power. The GT 3.0 now features a command feed button to extend the line as you work. No more stopping and starting, bumping or turning it over to extend the line, just press the command feed button and continue to work. The 12-inch cutting diameter means more trimming in less time. Not only will this cordless trimmer convert to an edger in seconds, it has dual-positioned in-line wheels that make edging a breeze. A quick-release trigger lever is convenient for making easy height adjustments to the telescopic shaft for comfort and control. The trimmer head turns with a pull and turn to lock and convert to edging. From function to features, the 20v WORX trimmer and edger features 100% single line feed which means no bumping to extend the line. A flower space guard not only helps protect vegetation, it also acts as an edger guide. A front auxiliary handle has 7 locking adjustments for maximum comfort while trimming, edging, or mowing. Weighing in at only 4.63 lbs, this 20v grass trimmer/edger will create a professional looking yard with less work, less fatigue and less time.