We offer 3 different grades of floor scrubbing pads. These green pads are the most aggressive scrubbing pads that we have to offer, before you actually get to floor stripping pads. We definitely recommend using a floor cleaning degreaser when using these green pads. These two together will remove almost anything that can be removed from your floor. These 18 inch pads fit onto the bottom of our Viper 18 inch electric scrubber, and make your life a lot easier by cleaning at an industrial rating!