20PCS 3In-Sanding Dischi Carta Vetrata Lucidatura per Legno Metallo 3000-10000#
Grit: 3000#, 5000#, 7000#, 10000#(Five each). It is more effective when wet. Can be used for precision grinding of for mold for s, but also for stone, lacquer finish, mirror finish, such as headlight polishing.