Ordinary Joe
Member
Castor Cups - Floor protectors
1-13/16"
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Add Bud
The pegs line up with each other, so position the top cup to sit just to the side of the bottom one.
Now, place over a tray and move them back and forth and up and down. Since the pegs are the same on both, you can not rotate in a circle but you can make small square movements that grind pretty good.
Dump and enjoy.
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