The Transformers Cybertron Supreme Primus Autobot Cyber Key is a plastic accessory part designed for action figures, specifically those from the Transformers franchise. Manufactured by Hasbro in 2005, this Planet Key is inspired by the character Primus and fits within the theme of Transformers and robots. Compatible with action figures, this Cyber Key adds an element of science fiction to the toys, making it a must-have for fans of the Transformers Cybertron TV show.