Depends on what finger I'm using. Index finger - med, middle-large. I like the Nimble thimble, its leather and has an opening for my fingernail. Another of my favorites is the Thimble Pad. Its a little leather/seude dot that sticks on your finger. My all time favorite is my own fingernail!! Especially for hand quilting. I use it until I get little holes in it then switch on over to something else. :lol: :lol: I have the best control with it.