I make detailed wooden ship models with intricate paint challenges. I have tried lots of brushes over the years (from cheap to very expensive) and these are hands down the best. Because they keep their shape and hold paint well they are a joy to work with. For fine detail I just touch the tip of the brush to the object, and these brushes have just the right balance of stiffness and flex to make that work. These will be my go-to brushes from now on.