Digital Innovations CleanDr Multi-Purpose Duster, 20 oz Value-Pack (3011600) Safely removes dust and debris from electronic devices without leaving any residue Multi-purpose duster is great for sensitive home and office electronics Clean keyboards, computers, printers, copiers, audio/video components, phones, digital cameras and other office equipment or electronic devices Extension tube included for cleaning in hard-to-reach areas Ozone-friendly formula includes bitterant additive to deter inhalant abuse Blasts away dust quickly and easily Innovative in design and performance Perfect for cleaning cameras, keyboards, computers, audio/video components and office equipment 2 - 10 oz. cans