I, too, started out with the $15 plastic version - which is still sized to your specifications. After wearing that one out, I kicked for the stainless steel version at I think $25. I'm on my second one of those due to wearing out the first one. And stainless is far more durable the sterling! When I think of the $$ I've spent over the decades on thimbles that didn't fit; didn't work; not comfortable; etc., they've been cheap by comparison.