The Black & Decker CM2040 Cordless Electric Push Lawn Mowers is a 20 inch, 3-IN-1 mower with mulching and bagging capabilities. The EdgeMax allows for close up edge cutting while the side discharges allow for multiple mowing modes. Variable motor speeds for allow for greater efficiency and runtime. The collapsible bag 15.85 gallon grass bag has soft fabric with hard top which permit checking fill levels. The 7-setting height adjust single lever easily adjusts the height of cut 1 ½ inch to 3 ¾ inch to cut all grass types. 40 Volt Max* lithium batteries (2 x 2.5Ah) allow for 30-45 min of mowing time.