Thank you 
My rings are finger splints. They prevent my fingers from hyperextending. I love them because they’re pretty but also because my fingers hurt a lot less since getting them
When I’m doing fine motor things that require a lot of force, I have splints for the distal joints of my fingers also (they go above the ones you see in the picture).
I also have a thumb splint, but it bruises me so I don’t like wearing it unless I really need to. My physio said the fact it bruises me shows how much I need it, because the bruise if from my joint trying to hyperextend past where the splint is holding it back.