The c6 jumbo screen cleaner from carson optical, contains our dry nano-particle cleaning formula that wipes away smudges, grime and fingerprints with ease. The soft, retractable pad is safe and easy to use on all screens. The c6 screen cleaner contains a built in carbon resevoir that replenishes the carbon onto the pad which each retraction. Therefore, it will be good for hundreds of uses. The c6 jumbo lens cleaner is perfect for cleaning laptops, tablets, smartphones and gps devices. Make sure to wipe away any liquids from your screen with a lens cloth before applying c6 screen cleaner. At Carson, we strive to make sure our customers are 100% satisfied with the quality of our products. We are so confident in our products that we back them with a One Year Limited Warranty! This Carson product is warranted to be free from defects in material and workmanship for a period of one year from date of purchase. Please contact Carson for additional warranty details.