Back in August I got an EXTREMELY BAD haircut. It was so short and I was so disappointed, I was driven to stop using heat products on my hair for quite some time, in an effort to let my hair grow more quickly (it is usually very slow at growing, and this did help a lot). During that time I found myself pulling my hair up far too often, and I wanted an alternative so I could wear my hair down without having to damage it. I found these curlers and decided to give them a try even though I was skeptical. I wrapped them in my hair (when it was wet) at night, and left them in until the morning. I used only the bigger sizes, and was very pleased with the results! When I first took the curlers out, the curls were a bit tighter than I had hoped for, but they quickly relaxed in to beautiful curls comparable to what I had been able to accomplish with my curling iron. I sprayed them down with some hairspray, and they lasted all day! I'll continue to use foam curlers to protect my hair from damage, especially since the results are so great.