Five-Cun Nails is one of the weapon applications of iron sand, belonging to the arsenal of the Magnetism element. The user compacts the sand and forms long sharp spikes from it. Such spikes are capable of piercing a human body and can be used to attack several targets at once. In addition, they can be suspended above the opponent and at the right moment brought down at enormous speed. The technique requires precise control over the sand and a sufficient volume of it. The magnetic field created by the sand makes these spikes especially dangerous and also prevents the opponent from using metal weapons.