Our Eider & Ivory™ Microfiber 12-Piece Cleaning Cloths are an all-purpose, lightweight, lint-free cloth that is suitable for many cleaning projects. Lint-free microfiber is constructed from "splintered" yarn that curls into microscopic "hooks." Better for streak-free, lint-free cleaning than cotton because cotton tends to shed. Microfiber's positive electrical charge attracts dust and dirt, which carries a negative charge. Microfiber's innovative yarn hooks hold dust and dirt inside the cloth until it's cleaned. Use multipurpose microfiber cloths for tasks like glass cleaning, kitchen and bath cleaning, office cleaning, and more. These microfiber cleaning cloths can be washed and reused up to 500 times. Machine wash with mild liquid detergent (free of dyes, fragrances, bleach, chlorine bleach, and softeners). Tumble dry low, and do not iron microfiber as it will melt. Do not use fabric softener as this may clog the microfibers and reduces performance.