Blow Off 152112-226 Blow Off Duster - 10oz. (Case of 12 units) All purpose sterilized cleaner. Non-Flammable and ozone safe. Removes dust, dirt and microscopic debris from hard to reach places. Recommended For: Computers, Keyboards, Desk Tops, Photo Equipment, Printers, Fax Machines, and more. Only shipped within the contiguous United States to a street address only. Only shipped by FedEx Flat-Rate Ground Service. (No PO Box deliveries.)