BW-100 Non-Flammable Electronic Contact Cleaner Aerosol Spray 8oz. Improves conductivity by blasting away dust and cleaning sensitive electrical equipment. Non-flammable, quick evaporation, and zero residue. Prevent contact failure by regularly cleaning. Safe to use on rubber, metal, and most plastics. Compatibility test on small area is recommended before use. Extension straw attached for hard to reach areas enabling pinpoint precision. *** Avoid spraying on keyboards, screens, and adhesives.