Fulla's Key is an intricately designed Norse artifact, featuring a robust metallic structure with a semi-realistic finish. The key has a long, slightly curved shaft with intricate runic engravings that glow faintly, suggesting its magical properties. The bow of the key is shaped like a stylized knotwork, symbolizing its connection to Norse mythology, and is made from a combination of aged bronze and silver, giving it a weathered yet majestic appearance.