GSI Creos Mr. Hobby AirBrush Stand & Tray Set IIGSI Creos Mr. Hobby AirBrush Stand & Tray Set Designed specifically for use with the Procon Boy, Pro Spray, and other Gunze airbrushes, this airbrush stand and tray is ideally suited to the professional painter. With two "cups" to hold your moisture trap and a paint bottle (the latter is optional, of course; and you can set bottles on the flat part of the tray, to), this tray set will add convenience and efficiency to even the tiniest workspace.