Wind Spin Detachable Hair Diffuser

Pro: If you have really long hair and you want to dry and curl the end of your hair in sections really quickly, this product is for you. It attaches to a profession hair dryer, there's a little dial that lets you choose the direction of the wind, you insert a section of your hair into it (use some product before you put it in), and then when you turn it on, your hair really spins. I recommend that when the curl is dry, you spin in on the cool setting so it sets, and then spray it with more hairspray so it holds the curls.

There are lots of youtube videos on it too.

Cons: It doesn't work on short hair and doesn't work that well with medium hair. Your hair must be able to touch the bottom of the device for it to actually produce a curl. The device attaches to the front of your hair dryer, so you need a professional hair dryer with a smaller nozzle in order to fit this device.

Cost : $10-20 on amazon.com, some salons carry it for $30-45.

It's less damaging then a curling iron, but doesn't have as much staying power as a curling iron.