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A blinker (also called a blinky) is a particular kind of nano-cache container.

The name "blinker" comes from the blinking LED jewelry originally used to create these cache containers. The blinking LEDs are removed or painted over, leaving a compartment for a button-cell battery with a tiny magnet attached. The battery is removed and replaced by a skinny strip of paper rolled up into a scroll (the log sheet), and the magnet was used to attach the blinker to a magnetic object.

Today, ready-made blinkers can be purchased from geocaching suppliers, or you can adapt a flashing magnetic pin or body light yourself.

Noteworthy Blinker Caches


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