Sanding Pads by Annie Sloan.
These come in a package of three. The top sponge is blue and it is the course. The red sponge in the middle is a medium grit and the green sponge is the fine grit.
They are reusable! Once you have saturated the sanding sponge, wash it well with a little warm water and a small drop of dish soap. I love that I can re-use them over and over.
They are awesome used both either when dry or do a wet distress with them by lightly moistening it with water. It should be dripping wet! I also LOVE that when I dampen them slightly with water ad go over dried chalk paint and "polish" the surface a bit that they do not create any dust.
They are about a 6.5" long and maybe 4.5 inces wide. I cut them in half so they fit in my hand better. They are $10 for the bundle and there is NO color