These 100% microfiber cleaning cloths are made with high-density microfiber materials designed to remove dirt, dust, and oily smudges from sensitive surfaces like sunglass, eyeglass and camera lenses, cell phone, MP3 and PDA panels as well as laptop and computer screens without scratching. They are one of the most useful promotional products in our digital era. They are available with smooth or serrated (jagged) edge. Serrated edge is supplied unless noted otherwise. Material Thickness: 170GSM. 10″ L x 10″ W