Did you ever try cleaning something that has a small orifice? I got these to help be clean things like my refrigerator water dispenser tube. I have several hummingbird feeders that have teeny tiny holes to clean so that I can get rid of the black moldy gunk. Hummers won't feed if the feeders are dirty. This set of twelve brushes will work for me for just about anything. They are soft so that they won't scratch any delicate surfaces that you might need to clean. They even brush away lint from between my keyboard keys. My bass guitar is always dusty under the strings and it's difficult to get a cloth underneath, so I will use the brushes to clean away.
I received this product at a discount in exchange for my honest a unbiased review.