I didn't realize how badly I needed these. All of my bra straps are too tight because I am pregnant and it was making me miserable. These fit perfectly on my 2-hook bras just like the hooks on the bra. They stay on well and don't come loose. I also realized in a moment of necessity that the 2-hook versions work just fine to hold together a 3-hook bra too. I just hooked them on the top two loops and it worked great. These lay flat, stay put and are soft and not itchy. They are great too, because I don't have to worry that I am stretching out the band on my bra. Super great buy!