ZandstraZandstra 3M Polishing Triangle Metal

3M Polishing Triangle from Zandstra with 3M polishing strips in different grain sizes. For the best result, grind the skate with the blue side first, until the friction decreases (about 1 minute), then switch to the green side for another 1 minute or until the friction decreases. To finish, sand with the pink side. The whole process takes about 3 to 5 minutes.