ROR "Residual Oil Remover" Optical Lens Cleaner (1 oz.) is specifically formulated to emulsify and remove microscopic oil residues for a measurable difference in brightness and clarity. And because ROR removes microscopic oil residues, dust has nothing to adhere to and surfaces stay cleaner longer! Ideal for lenses, telescopes, binoculars, LCD screens, HDTVs, cell phones, and much more.