Each DIAMOND®TECH card is an absolute specialist, performing its task where needed – at the sensitive contact points of optical and magnetic equipment. The DIAMOND®TECH surface structure is clearly defined with strong, ordered and uniform flock fibers. These fibers will not waver or waffle during the cleaning process. Proprietary DIAMOND design placement and construction, along with a flock-coated structured surface offers excellent cleaning action on curved surfaces. Independent study by a leading European test laboratory concluded the DIAMOND®TECH design cleans considerably better than the competing product. DIAMOND®TECH Cleaning Cards are pre saturated with a Green-e Certified solution: biodegradable, non-carcinogenic, non-toxic, non-flammable and Alcohol-Free!