How does a magnetic golf ball marker insert work?

A magnetic golf ball marker sits inside a larger challenge coin that acts as a holder. The insert is made from aluminum — the only magnetic metal we offer — and the holder is minted from brass, zinc, or steel with a magnet seated in the recess. Press down on the edge of the insert and it pops over the lip of the holder and slides out; drop it back in and the magnet catches it.

Because the holder and the insert are two separate pieces, they require two coin molds, which makes a magnetic ball marker coin slightly more expensive than a standalone marker. It also means both sides of the insert can be customized, so flipping it in the holder changes the look completely.

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