Sparkfun Magnet Square - 0.25"

The Magnet Square is a compact, 0.635cm cubed, rare earth magnet. It's composed of Neodymium/Iron/Boron (NdFeB), making it incredibly strong for its size. This magnet is ideal for attaching tools to metal surfaces, amusingly keeping small children's artwork on the fridge, or as a trigger for reed switches. The Magnet Square has a unique property of activating reed switches at a distance of approximately 3cm. This makes it a useful component in a variety of applications, from home automation to security systems, where the activation of reed switches is required.One of the key benefits of the Magnet Square is its surprising strength, despite its small size. Its ability to hold tools on a metal workbench can help in organizing your workspace and keeping it clutter-free. For the playful and creative, it can turn a regular refrigerator into a display for children's artwork or important reminders.With the Magnet Square, you're not just getting a magnet, you're getting a versatile tool with a wide range of applications. Please note that the Magnet Square is sold as single units.