This AF spray duster effectively cleans all your electronics, from PC fans to USB drives and more. It features an extension tube to target hard-to-reach areas, blasting away dirt, grime, and debris to leave your devices dust-free. It is an economy, flammable spray duster designed to tackle dust and grime from hard-to-reach areas. Not to be used near live equipment; this must be powered down before cleaning. Use only as directed. Effectively removes dust and crumbs build up from hard-to-reach areas of equipment including keyboards, printers, photocopiers, fax machines, cameras and much more. Extension straw allows for precision of the blast. Use in short, sharp blasts and never use on live equipment. Odourless, Pack of 1 x 400ml cans. To use upright only. 400ml / 214g.