This item appears to be a thick, silver-and-grey cube with dark grey hinges and an animated phantom trapped inside. It has a small window with a metal bar on one side and a giant lock on the other side. The entire lock-box bounces off the ground periodically as if the phantom inside is trying to escape. Animated electricity from the phantom inside can be seen outside the lock box every few seconds. This item has five varieties that each have a different color of electricity.
- The Phantom Lock-box is one of three different metal containers trapping phantoms that also includes the Phantom Cell and the Phantom Cage.
- This item has a wooden counterpart called the Phantom Crate.