Swiffer WetJet Hardwood Floor Cleaner, Spray Mopping Pad Refills have a new absorb + lock strip that helps trap dirt & grime deep in the cleaning pad so it doesn't get pushed around. When you’re done, just remove the pad and throw it, and all that dirt, away forever. Absorb + lock strip helps trap dirt & grime deep in pad so it doesn't get pushed around. For best end results on your hardwood floor, use with Swiffer WetJet solutions. There's a perfect solution for any cleaning need.