Floating Magnetic Compass - Spinning Outer Ring

I needed a way of quickly identifying the pole of a magnet. Using your phone's built in compass - you can quickly mark and identify the north or south pole of a magnet. The spinning outer ring allows you to help identify the pole for when you remove it from the water or to help navigate further. AMS Profile included - adds a brilliant flare of colour to the mix! How to use - Drop in 3x 10x3mm Neodymium magnetsDrop the unit in water Allow it to find north - takes 10-30 seconds Use your cell phone's compass app to locate north and match it to the direction the magnet is facingSpin the outer disc to point towards northYou can now identify the pole of the magnet - the end pointing to north is a SOUTH pole.The end pointing to south is a NORTH poleBecause opposite magnetic poles attract, the magnetic north pole of the compass points toward the magnetic south pole of the Earth. (The magnetic south pole of the Earth is located in northern Canada—that is not a misprint. Indeed, the magn