Review on 🪚 Coceca 80pcs 5-inch Orbital Sanding Discs for Power Random Orbit Sanders - Assorted Grits: 40 60 80 100 150 180 240 320 by Patrick Reynolds

As others have said these are disposable pads if you need a base to stay attached. I am building a bed frame from a 19th century barn which is quite petrified which is why I needed 40 grit the most. After about 20 minutes of sanding, I lifted the sander to check the finish and the panel flew all over the shop. When trying to reattach it there was nothing left to hold it in place. The grinding surface (grain) was still practically new, thank you very much. Within an hour of sanding I was using the same pad, I just put the sander down on the wood before running it and everything is fine. I will definitely buy them again but if the felt base is very important to you I would spend 10x that in stores. 4* only because of the deposit, which annoys me but is not critical.