Wolf Keychain fully flat printable with sturdy loop

The original contains a loop that is not completely flat with the bed, also the loop did not seem very sturdy, so I added a tougher loop that lays flat. Having printed it, I think it's slightly overkill, but only time will tell how well it holds up. I included the freecad file so you can adjust the ring dimensions per your liking.

Printing it in TPU makes it ideal for use on a keychain, it's nice and flexible but still feels very tough.