With the Black & Decker ST182320-QW, you won't be bothered by extension cords anymore. Thanks to the 18-volt 2.0Ah battery, you'll enjoy complete freedom of movement when trimming. The string trimmer is equipped with an extra handle and a telescopic tube, allowing you to work at the perfect height, between 101 and 127 centimeters, and with perfect grip. Trim with a 25-centimeter cutting swath using a trim string that's automatically kept at the right length. The pivotable head and the edge guide wheel help you in creating perfect lawn edges. Forgot to trim a patch of grass? Quickly and easily switch the ST182320-QW from edge cutting to trimming.