This 20V MAX* cordless kit includes a 5 in. Random orbit polisher, two 20V MAX* 5.0ah batteries, charger, and kit bag. The high-efficiency brushless motor delivers up to 75% more runtime over brushed. The variable-speed trigger and dial allow for better control during car, headlight, windshield, and glass polishing applications. The 2.1 in. Orbit diameter combined with the included 5 in. Backing plate is recommended for most applications.