This combo package includes both the Single Mandrel System and Gang Drying Accessory to make the ultimate drying system. Get a beautiful, hi-gloss and durable finish using this handy system. This system enables you to finish pen barrels or bottle stoppers with finishes that tend to run and pool. It is easy to use; just mount the mandrel onto the motor and then mount your blanks onto the mandrel and apply the finish. The motor turns at 20RPM allowing the finish to dry evenly without running or pooling. Let the finish dry overnight (depending on the finish) and apply multiple coats if needed. Ideal for brush on lacquers, polyurethane, resins and epoxies. The Single Mandrel System includes: 110V AC 20RPM motor, Pen Mandrel, Bottle Stopper mandrel, 4 universal cone bushings, 6 standard 7mm bushings and allen wrench. Cone bushings are compatible with any tube size. The Gang Drying Accessory will allow you to turn up to 12 pen blank sets at one time. The accessory includes 4 mandrels, a disc that will support up to 12 mandrels, a motor mount, bushings and lock nuts, a base and a shaft and shaft support. Extra mandrels are available sepeartely if you want to reach the full 12 pen blank disc capacity.