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 needRecommended WetJet mopping pad for use on finished wood floors**do not use on unfinished, oiled or waxed wooden boards, non-sealed tiles or carpeted floors because they may be water sensitive.Safe on all finished floors**do not use on unfinished, oiled or waxed wooden boards, non-sealed tiles or carpeted floors because they may be water sensitive.Also try Swiffer WetJet Extra Power! Contains an extra SCRUBBING STRIP with the power of Magic Eraser