AF Invertible Sprayduster / Air Duster Compressed Gas - Flammable - Removal of Dust and Debris from Electronics - 4 x 200ml Pack, HFC200UT4PKStandard power sprayduster with extension straw for precise cleaning and dust removal. Can be used at any angle to blow dust and dirt from keyboards, computer equipment and other electronics. Always power down equipment before use. Use in short, sharp blasts and never use on live equipment. Ideal for use on keyboards, laptops, musical instruments, fans, printers and much more. Specialists in PC, workstation, office equipment and technical cleaning