Micro fiber is a revolutionary polyester polyamide fabric that is non abrasive and hypoallergenic. X-Static Microfiber cloths attract dust, grime, oily films and salt residues like a magnet. Cloths surface structure contains 90,000 micro fibers per square inch. These micro hooks grab, lift and hold dust and grime without the need for cleaning solutions. X-Static Microfiber cloths can be used damp or dry. Used dry, the super absorbent weave holds up to seven times its weight in fluids. Super Fine Microfiber cloth will not scratch painted or delicate surfaces. Use it to apply polishes and as a final wipe towel to buff to a brilliant shine.