ULTRACLOTH micro fiber cleaning cloths are scientifically engineered to safely clean lens screens glass and other sensitive optical surfaces. These thick cloths are superior to cotton base cloths since they clean more surface area will not streak and will not shed lint. Made from a proprietary super-soft extra-thick advance synthetic textile material. They are reusable and can be used wet or dry (use with our OPTIKAL KLEENER fluid). All serious operators of cameras and electronic equipment will benefit from ULTRACLOTH s unique cleaning ability from professional photographers & cinematographers to everyday uses of consumer tablets phones and flat screen television. UTRLACLOTH is also the cleaning choice of leading museums and art galleries.