Rare Earth magnets are particularly powerful and come in a range of sizes. These Rare Earth magnets are perfect for modular assembly - that is, quick and easy part swaps. Put a Rare Earth magnet in a tank turret, and one to match in the tank itself, and the turret can be removed quickly and easily. Rare Earth Magnets allow you to swap out different weapons, to indicate damage, to pose your miniatures, or just for safe transport.