I think they work honestly I know nothing about sanding paper so I ordered them for my husband and I figured well a hundred of them so it should last him a long time and be ok right. Nope he’s using them for everything. So it looks like a hundred isn’t enough and I’m going to have to buy more here https://www.amazon.com/dp/B07RW2X4WF. But I’m this time I getting to sets i. #RankBoosterReview ii. #Sponsored iii. #Gocheer.