 SCP-536 is a small chamber with a 50-centimeter square viewing window, six tunable dials with corresponding meters, and an electromagnetically sealed entryway. Each of SCP-536's dials alters the value of one of the fundamental physical constants within the chamber. The dials control, respectively, the speed of light, C, the gravitational constant, G, Planck's constant, H, the fundamental charge, E. Except for the viewing window, SCP-536 is totally opaque to the electromagnetic radiation and subatomic particles. No abnormal physical behavior has yet been observed outside the chamber during testing.