This is a nice device to achieve beautiful curls easily enough dintroduire he fact that the lock of hair in the device only by adjusting the temperature and time "cooking". It's simple and effective. The unit is made of plastic and therefore without the risk of burning, a little heavy and cumbersome in the long run, however. I found him two defects: Given its thickness, it can not act on the wick sufficiently close to the root, leaving it without loop. Also, you do not qualify for the mistake because if you can easily bring your smooth wick into the device, you can do more once this one is complete, so you can not take back, modify or improve.