The Lee Powder Measure Bottle Adapter allows dispensing powder directly from the shipping container of most popular powder manufactures. Includes a crystal clear bottle that holds over a half a pound of ball powder. Works on all bottle of powder utilizing 53mm or 43mm thread. Dispensing powder directly from the bottle assures positive identification of the powder type. Adapter is manufactured from Polypropylene, resistant to attack from all types of powder. Now you can turn off the powder flow and store your powder in its original container with no fear of misidentifying or damage to your hopper from chemical attack. Viewing window allows monitoring powder level in use without removing bottle. Powder measure bottle adapter fits all Lee powder measures.