These Red Trizact diamond abrasive strips are made for the Square Scrub Doodle Scrub polishing system. The diamond abrasive surface produces a smooth, highly refined finish on concrete, marble, terrazzo, and similar hard floors. Strips mount to the Doodle Scrub head for use with the 1/4-inch white driver pad. Replace strips as the diamond surface wears to keep polishing results consistent across floor maintenance jobs.