The elimination chamber concept

The Elimination Chamber match is generally contested by six participants, with two beginning the bout in the ring, while the other four are held within each inner chamber. Every five minutes, one of the four participants within a chamber is released into the ongoing match. This continues until all four have been released, and so an Elimination Chamber match typically lasts over twenty minutes. The objective of the match is to eliminate each opponent from the match by executing a pinfall or a submission