The WORX WG191 56V Max Li-Ion 13-Inch Cordless Grass Trimmer features a new Command FeedTM system that allows instant trimmer line advancing – no more bumping or waiting for the line to advance before cutting. With Command FeedTM, the user electronically controls when to feed more line through a simple push-button above the trigger. This not only conserves line, it eliminates downtime when edging and waiting for additional line to advance. This trimmer uses a thicker professional-grade trimmer line (.080” diameter, 1” x 20′ in length) that’s more durable than conventional line. WORX incorporates a quick-change, easy-to-load, pre-wound spool accessory, so there’s no fumbling with line changes. The WG191 also has a new method to switch from trimming to edging – the push-button feature delivers a seamless transition between functions by simply pressing a button at the top of the shaft and twisting. The WG191 comes with a set of twin wheels that help guide the tool while edging, wheels that can be removed and housed on the lower shaft to give you full visibility while trimming. The head pivots from 0 to 90 degrees to provide any angle needed for trimming and edging.