80% Polyester;20% Polyamide.[Thicken]Grey black microfiber cleaning cloth,:12"x12",so it is small microfiber cloths,80% Polyester+20% Polyamide,400 GSM. Micro fiber cloth for cleaning is three times thicker than others and microfiber cleaning cloth is ultra absorbent. There is no need to use (dry) finishing cloth, which can save a lot of time and work..[ & Reusable]Microfiber towels for cars are reusable and machine washable. Rinse and reuse several hundred times. For results, clean the cloth with other microfiber material in cold water and air dry..[Soft & Lint Free]This super microfiber has the pick-up power of microfiber and the softness of without scratching paint, coating or other surfaces. No stripes and lint-! Ideal for cleaning cars, RVs, and home TVs, computers, countertops, etc..[Scracth-Free]The soft cleaning cloth will not scratch items, nor will it scrape paint, coatings or other surfaces. It can capture small dust and particles without leaving traces, allowing you to find the fun of doing housework!.[Multiple Color Selection]You can assign colors for different tasks, such as green for kitchen counters cleaning or bathroom, blue for devices or crystals kit, and orange for dusting or furniture dusting cloth. Organize your cleaning chores with these large cleaning cloths and enjoy cleaning.