Organizations like NASA, Nikon and Canon purchase LensPen products because it is: SAFE to use on all optical lenses, LCD, plasma and glass surfaces. EFFECTIVE because nothing removes oily fingerprints and dust better than a LensPen! CONVENIENT due to it’s compact size, no liquids and ease of use. CUSTOM DESIGNS unique colors and shapes for different applications. And LONG LIFE as LensPens cannot dry out, it is unaffected by temperature and can last over 500 cleanings each!