Review (4/5): If you want curls...buy a curly one!.
It does say that you can style this....NOPE! I have tried on several occasions to use a curling iron, flat iron even tried wetting it and curling it overnight with rollers. Nothing will make this extension curl! So, I ended up cutting it to the length of my hair to blend in better and add fullness and thickness to my hair. My hair has a natural wave and even when I straighten it it still has a wave so this hair piece did NOT blend well. But having it under my natural hair adds a nice thickness to a pony tail and to my thin hair. I gave it 4 stars because I do like it and I will see if maybe I can find a curly one that will work better for extending the length!