The King Kone pre-roll cone filling machine is the most versatile pre-roll machine for a reason! Now you can get more out of your King Kone pre-roll machine with this tube conversion kit, which is compatible with tube inserts to pack pre-rolled tubes. To get the most out of your King Kone conversion kit, purchase multiple inserts of varying sizes so you can pack wider diameter or narrower pre-rolled tubes in the same pre-roll machine you use for pre rolled cones! We also recommend pairing the King Kone Conversion Kit with a metering tray, so you can be more precise for weight compliance, and for even distribution of sifted material into each cone.