Very effective
If you have really thick, curly, or just a lot of hair it can be kind of tough to reach in and grab them to un-spin them, but you can't beat them for the price (2 for $6 for name brand ones!? no thanks). I have long, thick, curly hair that I like to throw up in a loose bun and I need only 2 or 3 of these, as opposed to 10-15 bobby pins.
Rating: 5 stars