The 350 is an external mix airbrush. Air and paint mix outside the airbrush, creating a larger, coarser “dot "pattern and providing a heavier spray volume. The 350 is superb for base coating, stenciling, stippling, touch up projects, etc. An excellent choice for beginning students, hobbyists, ceramists, and automotive painters. This model sprays high viscosity materials such as ceramic glazes and stains, and hobby enamels with ease. It is also effectively used with properly reduced acrylics, inks, dyes, watercolors, acrylic, lacquers, enamels, Air-Opaque, Air-Tex, SpectraTex and MODELflex airbrush colors The Model 350-9 (M) set contains medium airbrush with attachable jar, propel regulator, vinyl airhose, and wrench for needle assembly on blister card. Proudly made in the USA.