The DARKSIDE polishing lap, from Gearloose, maker of BATT laps. It can be used directly on the platen, or if you are one of those facetors who likes to press down hard when polishing, put it on a master lap.
The Darkside™ was created to address the rising metals prices and to create an affordable easy-to-charge and use lap. They immediately became popular with people who always had trouble charging a metal lap.
Can be used with the whole range of diamond and oxide polishes.
The lap quickly breaks in on the first stone, without the charging process needed for metal laps, making it user-friendly for beginners.