These 100% fiber cleaning cloths are made with high-density fiber 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. Host a "clean" event with this great item! They are one of the most useful promotional products in our digital era. Comes with serrated edges. If you need more for a group, please message me.