key and lock rings. It comes in several sizes, beginning from 14.1 to 24.6 in diameter so you can find your ring's size. It is ready to print, and I tested it in Blender and Cura. It is watertight. It doesn't have any intersection faces, zero faces or edges, thin faces, or sharp edges.The ring comes in these sizes, and every size has a letter so you can find it in the files easily:A:14.1 diameterB:14.9 diameterC:15.7 diameterD:16.5 diameterE:17.5 diameterF:18.1 diameterG:18.9 diameterH:19.8 diameterI:20.6 diameterJ:21.4 diameterK:22.2 diameterL:23.0 diameterM:23.8 diameterN:24.6 diameterIf you don't know how to your ring's size you could read this article

https://www.realsimple.com/beauty-fashion/shoes-accessories/jewelry/how-to-measure-ring-size

. After you find your ring's size you should now download stl files or obj files or ply files and unzip them. You will find in them stl or obj or ply files, and every file has a name same as ring_A the letter refers to the size of the ring.I hope you like the ring and didn't have any problem, and if you found a problem you could ask me. I like to hear your opinion and see your makes.

Enjoy!