product description: avoid playing public touch screens like store checkouts. ergonomic design. 260 alloy bronze can kill bacteria in four hours. reduce the contact point area to more than 99%. no direct contact with contaminated surfaces the safest way to use public touch screens, doors and buttons ease the anxiety of the germ once and for all the cleankey is great for: door knobs work on levers, handles and sliding doors touch sensitive screens such as store checkouts and digital sig