These Ultra-Polish Pads are excellent for removing tarnish, highlighting when using liver of sulfur or silver black,or stains. or polishing to a high luster, fast and easy. Leaves no residue. They are made of thin, tight-bond foam with permanently bonded micro-abrasives. A handy, economical polisher that is truly amazing. Squares are 2" x 2" and sold in packs of 20. great for a Gift