A simple, rugged airbrush well-suited to models, crafts and special effects, using medium- to heavy-viscosity materials. Bodies are high-impact nylon to resist solvents, while spray tip are precision-made metal. Single-action, external-mix, bottom-feed design is easy to use. Can be used by children with proper adult supervision. Spray pattern adjusts from 3/4" (18.9mm) to 2" (50.8mm). Use with Propel(R) cans, compressors or CO2 tanks, sold separately.