There’s a new series of Attack on Titan jewelry out there that includes rings based on both Eren and Levi as well as a special necklace, all released by way of Premium Bandai as a collaboration between Material Crown and Attack on Titan.
You can preorder them all now via Premium Bandai, though they aren’t shipping just yet.
If you do want to get them, though, you’d better hurry up and preorder. They won’t last long.