In the 1970's hair was highlighted most often with a plastic cap and crochet hook...it was called frosting. Frosting was only appropriate for relatively short hair because longer hair simply could not fit into the plastic cap. The problems associated with frosting centered on the metal crochet hook. Even done correctly, pulling strands of hair through tiny holes in a plastic cap via a metal tool was uncomfortable...and many times, (especially if performed by the inexperienced!) quite painful! There was also a very real chance of hair loss from breakage. At the time, it was the best that the beauty industry had to offer. By the mid to later 1980's, a newer, non painful, more natural highlighting method became available...it was called weaving. It involved small sections of hair "woven" out with the end of a rattail comb, covered in haircolor and wrapped into sheets of foil. Many women and hairstylists breathed a sigh of relief! Okay...so that said...why would anyone want to go back to using a barbaric tool that inflicts damage and pain?!!! Nuff said!!!
updated by @panterra-caraway: 07/22/15 11:56:42PM