Perfect hair volumizer!
This is a clip-on human hair extension.  Here's why I love this product (and have bought several): 1) its human hair. I find that the synthetics cause me to itch where the ends touch skin when it swings/sways, but the human hair doesn't.  Plus its softer than synthetic.  2) you can wash, color and curl this.  I hot curl mine all the time (one of the 'con's' is that the curl doesn't hold from wearing to wearing).  If you had to color or wash this, you could. I've done both too!  But needs to be handled with great care!!! 3) its one unit, so its easy to apply. It has 4 clips across the back where you clip it up under your hair in back to gain a bit of length and alot of volume.  Keep in mind that this one is only 10 inches. That means that it will come just about to shoulder length (depending how you clip it in). It is NOT a long hair extension (look to 15-17 inches if you want long hair).  Other info/tips: The colors shown online are slightly off from what the piece will actually look like, but the descriptions are good. They will NOT take this back if you wear it, brush it out, etc. - so be sure to know the color you want before you order.  This company sells a wheel of colors for about $20 (you'd have to inquire directly with them for current price of their color wheel) and if you never ordered any from them before, I'd recommend getting that wheel to be sure of what you will get under each color number/name.  That being said, and you still want to chance ordering from the online descriptions, remember there will be some 'forgiveness' to the color you order because its clipped under your own hair and gets kind of mixed in.  I would recommend a shade darker than your own color, rather than lighter.  Lastly, if your hair is VERY, very thin...you may find that clipping in a full extension like this one is not practical (won't hold or blend well) and it may pull uncomfortably at your own hair and even cause breakage.  Along same line, I would not recommended this for people with bald patches.  But for thinning hair perhaps due to aging, or because your own hair was never the thickness you wished, or for a fast dressing up of your own hair for special occasions- this extension is ideal and you will love it like I do!
Rating: 5 stars