Review on Tinkeep Silicone Bottle Cleaning Brush Set of 2 - Long Handle Cup Cleaner Brushes for Baby Bottles, Water Bottles, Thermos, Hydro Flasks, Coffee Mugs, Tumblers (2 Sets) by Allison Acosta

I wanted to use this to clean my milk frother because milk kept getting stuck in the brush I was using. The brush washes off easily, but the "bristles" are so thin they don't clean the edges. Also, the handle is extremely curved so you can't easily apply the pressure needed to try to get the brittle bristles to work. I think a 90 degree handle might be useful for bottles but I found it useless for cleaning cups. or water bottles because they were thin bristles on a very thin handle and I could put even less pressure on them than I could on a straight brush. I have to keep looking!