Ring Box for a keychain

my sister asked me to make this so she could take off her rings when she goes rock climbing and have somewhere to put them so she doesn't lose them. I printed this out of TPU for its impact resistance. You can attach this to your climbing harness or your backpack with a karabeaner or something similar. i designed this for typical female ring sizes. My aggie ring doesn't fit in the standard size box. if you have a bigger ring you can probably just increase the scale. Although i'm not sure how that will affect the tolerances on the threads.