New and improved Swiffer WetJet mopping pads have a new Absorb + Lock strip that helps trap dirt and grime deep in pad so it doesn't get pushed around and is safe on finished wood floors.When you’re done, just remove the pad and throw it, and all that dirt, away forever. Do not use on unfinished, oiled or waxed wooden boards, non-sealed tiles or carpeted floors because they may be water sensitive.