Monstercolors spray nozzle cleaner is a must have when using aerosol spraypaint. Monster cap-nozzle cleaner will not only prolong the life of your spray nozzles but also will work as a graffiti remover. it will also clean up paint overspray and spills. Nozzle cleaner can also be used in the arts sector to create various effects on painted surfaces. Monster nozzle cleaner is fast and easy to use, simply attach blocked nozzle to the cap cleaner aerosol and press nozzle down several times in order to pump the solution through the nozzle. If nozzle is not sufficiently clear after this move to step two. Place the straw nozzle on the cleaner can and spray a sharp burst on to the blocked nozzle both in the male stem and release hole on the front of the blocked nozzle. You should you perform this after each use of your monster aerosol spray paint in order to prolong the life of your spray nozzle. Monster nozzle cleaner will also work in clearing nozzles from other brands of aerosols that have male spray nozzles, suitable eye and breathing protection should be worn when using nozzle cleaner. Each nozzle cleaner comes in a 400ml aerosol.