Blast away dust, dirt, and other contaminates from computers and electronic equipment with SKILCRAFTÌ´å¬ Power Duster. This contemporary product is ozone safe, non-flammable, and leaves no residue. Its handy trigger and extension tube make precision cleaning easy and safe. Shrink wrapped triple pack of our popular SKILCRAFTÌ´å¬ Power Duster. Four (4) packs (for total 12 cans) per shipper.