Iam selling this because I purchased 2rods of 5 nine silver. with these 2 coins you can make many, many, many gallons of pure .9999 silver. my coins came from a coin collector. they are uncirculated. in there plastic wrapper, never touched by human hands. attach your electrodes and you are set. I have a 16oz glass jar. with a piece of balsa wood on top. I made 2 slits so the coins fit snug. push them through the balsa wood slits about 3/4 of the way so the electrodes get a nice bite on the rims. the balsa wood protects from splashing, and getting water on the electrodes. been doing that for years. iam also using AC voltage, no batteries. comes out Crystal C. every time, I usually dont go over 5PPMs.