Dancing with the Stars Attack on Titan Shingeki No Kyojin Eren's Key Cosplay Props Necklace Material: Alloy Approximate length of the key: Size L - 11.5cm; Size S - 7.5cm Inspired by Attack on Titan and brought to you by Dancingstars, this necklace symbolizes Eren's key, given by his father, which could be used to open their basement Delicate gifts for fans of Attack on Titan!