these models are designed for large dimensions but light weight. The thickness of the ring body is between 0.3 and 0.4 mm. These rings need high precision for production!

If the dear designers want to increase the thickness, they can scale the model a little if necessary and resize the ring once in the software when the thickness is increased. You can also use the unmesh file and apply your changes.

If the surface of the models is chiseled, they will look more beautiful !