Patented FlexiWheel with its unique microfrictional surface repairs a thin protective layer on the PS3 discs within the safe buffer zoneThis process smoothes abrasions and removes dirt & grime to renew the disc"sWorks gently enough to repair the same disc multiple timesIncludes disc repair device with patented FlexiWheel Skip Dr rejuvenating fluid blue drying cloth Clean Dr Disc cleaning solution 8" x 8" microfiber cloth and 6 AA batteries