These are super high quality THICK Microfiber polishing cloths. The same EXACT cloths sold by some fancy jewelry and wristwatch sites for up to $15! We went right to the factory and bought a TON with the mighty GFS logo proudly emblazoned- so we'll sell them to you dirt cheap- just to get our logo out there a bit! But seriously- these are OVERSIZED 12" x 14" cloths with cross-stiched edges- not tiny jewelers cloths or the 12" square cloths sold for $10 elsewhere. I like em so much I use them on my guitars, cars, even to clean my monitor. These buff guitars to a super nice gloss and leave NO residue behind- yes, you can launder them over and over again, just air dry.