The Levitron is a classic physics toy that puts on a gravity defying show over its magnetic base. Even if you learn to levitate it easily, it will fall after a couple of minutes. The Levitron Perpetuator can change that. It significantly increases levitation time. You will need to add a bit more weight to pull it off.
The Levitron Perpetuator works best with the Super Levitron. You can find out more here.