 SCP-533 is a necklace, usually approximately 54 cm in length and 3 cm in width. All metallic portions of the necklace have a dull gold finish and appear to be made of cheap metal. Permission for further testing of the metal fitting's resistance to physical damage is pending approval. The clasp is of a standard barrel type. Attached to each side of the clasp is a round metal fitting. Most of the mass of the necklace is the body of a snake. The snake body is in constant motion, emitting from one of the round fittings and sinking into the other at approximately 1.2 cm per second. The rate of emission does not seem to vary as much as the length and mass. The rate of absorption alters to accommodate changes in length. Since the foundation acquired the necklace in 1981, an estimated 12,000 km of snake body has appeared from one end of the necklace and disappeared into the other.