LEONTOOL 30-Pack 80 Grit Hook & Loop Sanding Discs for Mouse/Detail Sanders | 6-Hole Design | Woodworking, Furniture Refinishing & DIY Projects

Great price, each sheet lasts longer than expected. Sadly every other sheet even fresh unused will leave swirls. Had to restart and completely sand down a table again to refinish it. First picture shows the swirl the second used different sand paper to get swirling out before finishing the table. This doesn't matter as much if you're going to use paint but almost any finish highlights the swirling effect. And what the swirling effect is caused by not having uniform sized chunks of aluminum oxide attached to the paper. Just one larger chunk get stuck in there and you end up with swirls.