The Double Alpha Mini Mr. BulletFeeder Kit uses a 6-tube magazine system, which holds roughly 100 bullets, and feeds into the dropper die assembly. Once all of the bullets have fed through one tube, simply rotate and click the next tube into place and keep reloading. The Mini Mr. BulletFeeder can be used on any progressive reloading machine that uses the same size dies as Dillon. Kit Includes:6-Tube Bullet Magazine AssemblyDropper Die AssemblyExpanding powder funnel (Dillon compatible)Spare Steel Ball-Bearing for dropper (3)User Instruction Sheet