Microfiber cleaning cloths provide excellent lint-free cleaning for any surface. They are ideal for countertops, porcelain, chrome, glass & wood. Ultra-fine, densely bundled microscopic fibers form a cleaning surface 40 times greater than regular cotton fiber to remove substantially more dust, dirt & bacteria than conventional cleaning products. Cloths are color-coded. The 220 gsm blue suede is specially designed & knitted for cleaning glass & mirrors. At 260 gsm, the other cloths in green, pink & yellow are designed for general-purpose cleaning. They trap dirt & dust & can be laundered extensively, but not with fabric softener. The cloth effectively removes bacteria without the need for chemicals. It can remove 99 percent of bacteria with water alone.