This kit raises the hopper so you can stack two disks. It not only doubles the capacity of the disks but it makes very fine adjustments possible. Most powders can be adjusted up or down .1 grain with different combinations of disks. Complete listing of combinations, 4 extra disks, screws and risers are included.
WARNING: To the state of California, this product is known to have chemicals that cause cancer, birth defects, and harm to the reproductive system.