Swiffer Sweeper Heavy Duty Wet cloths TRAP + LOCK™ 50% more dirt. They are safe to use on all finished floors and have a scrubbing strip to remove tough spots. Dirt magnet strip funnels dirt & liquids into the pad's center and off your floors. Enjoy the scent of lavender freshness for hours.vs. Swiffer wet mopping clothsDo not use on unfinished, oiled or waxed wooden boards, non-sealed tiles or carpeted floors because they may be water sensitive.Up to 4 hours of freshness left behind after initial product use