Premium cleaning kit provides all the tools you need to effectively clean fingerprints & other embedded dirt from keyboard surface. Thoroughly removes crumbs, dust & other particles that accumulate between & under the keys. Completely safe for maintaining keyboard function. Complete Cleaning Kit – Includes one 3.5 oz duster, one 50 ml cleaning spray, one 5 1/4" x 7 1/2" microfiber cloth & four swabs. Application: Electronics / Antistatic Cleaner; Applicable Material: Ceramics; Fiberglass; Glass; Laminates; Metal; Plastic; Chemical Compound: 152a Difluoroethane; Dirt Types: Debris; Dust; Grease; Fingerprints; Soil; Smudges.