HOW IT WORKS Magnetic coin jewelry is designed to have a coin that fits into a round slot in the jewelry. These coins are interchangeable. All of the jewelry has a pin hole in the back of the round slot that accepts the coin. All coin jewelry comes to you with a needle. The point of the needle is inserted into the pin hole on the back of the round slot and pushed against the coin to lift it so you may take out your magnetic coin and change it to another of your favourite coins. It is that easy!