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You need 2 pen's a sharp pin pencil drill ect.
Poke hole through middle of pen make sure to take out ink cartridge
Take out back plug
Cut rubber band in half
Take out plug and put rubber band in and then put the plug back in make sure the plug is secure and the rubber band and the hole ...
Do the same as step four but on the other side
Load the ink cartridge in the hole and pull back
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