Clip on hair extensions are typically not sold by salons and can be purchased by the consumer. You clip it into your hair yourself. They are sold by length and usually are sold by 10", 14", 15", 16", 19", 22", and 25" and can be as much as $75. You can select your color and whether you would like straight, wavy or curly. They may be one solid piece to clip into your hair, or several small pieces to clip in. The picture to the right shows many small pieces that will clip into your hair. You place these close to the scalp under your natural hair so the clips are not visible to other people. Some are sold as ponytail hairpieces.