Measuring just 4.875" inches, the Handy Fluxer offers an easy method to apply liquid flux to any solder joint. The exclusive two piece barrel handle is transparent for easy refilling and fits easily into lab smock pockets. Flux is delivered on demand by sqeezing the tool's comfort grip barrel, distributing the flux through the tools soft nylon brush tip. The Handy Fluxer keeps flux volume under control and saves money. Reffillable design. Order multiple Handy Fluxers if using different types of flux to keep your flux chemistry contaminate free.