Iwata's CM-SB is the top of the line side feed airbrush used by Dru Blair. Designed for rendering the highest level of detail.
Student version is the same airbrush (new in the box) upgraded with our own BLAIR SoftSpring per-installed and offered at a special price for Students of Blair School of Art. It's an unbeatable combination! (Includes: Red metal storage box, side color-cup, moisture trap, nozzle wrench, and tube of SuperLube*)
Class Airbrush The airbrush was used during classes and may show slight outward signs of wear. It was tested and works as it, but may benefit from a new needle and nozzle, for optimum performance. (Includes: side color-cup, nozzle wrench, and installed SoftSpring, - Red metal storage box, and Moisture trap available as extra options)
*We have a strong dislike for SuperLube allowing it to get into the air valve may cause unwanted gumminess and failure of Blair SoftSpring to work properly. Recommendation is to discard - Glycerin my be used as a lube that doesn't leave residue. That said: it is unlikely that you should need lube on the O-ring in air valve (or on the pin under the trigger) unless you introduce another substance that dries it out or makes it gummy.