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Gremlins are tiny monsters that like to destroy and wreak havoc wherever they go.
They can not tolerate the bell because the bell represents order and justice, therefore, they climb inside the bell to destroy it.
If you hang the bell on your bike, the constant ringing of the bell will drive them crazy and force them to fall off you bike.
When you buy a bell for yourself you receive good luck.
If you buy the bells for your friends, they get double the luck.
Often, friends and couples buy bells and exchange them with each other.
You can never have too much luck!