25.4 x 20.3 cm (10.0 x 8.0 in). Trap + Lock 50% more dirt (vs. Swiffer Wet Mopping Cloths). Safe on wood & 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). Contains no phosphates. Good Housekeeping: Since 1909. Limited warranty to consumers. Replacement or refund if defective. www.swiffer.com. Questions? 1-800-214-8734.