Presaturated swabs save time and money by cleaning clogged inkjet cartridges thermal printer heads tape heads and electronic circuitry. Useful in a number of other office applications too. Swabs come packaged in single-use foil packets. Application: Computer Cleaner Kit; Applicable Material: Fiberglass; Metal; Plastic; Chemical Compound: Ethyl Alcohol; Dirt Types: Body Oils; Dust; Grime.