Not exactly a Fine woodworking tip but here is it is in all of its splendor. While sanding a stack of drawers last week I found myself swapping out the disks a few times. The labeling on these Fe$tool pads is faint and after a few minutes of sanding I could not see the grit size and had to whap them on the bench in order to read the size. I was getting more dust on the bench from cleaning these than from sanding. I labeled the disk with a marker and problem solved.