Hair iron
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A hair iron or hair tong is a tool used to change the arrangement of the hair using heat. There are three general kinds: curling irons, used to make the hair curl; straightening irons, commonly called
historical image of hair irons (top)
An electric curling iron
A manual, 1920s curling iron
Hair straightening
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Hair straightening is a hair styling technique involving the flattening and straightening of hair in order to give it a smooth, streamlined, and sleek appearance. It became very popular during the 195
Large rollers can be used to straighten curly hair
Hair being straightened with a hair iron.
Madam C. J. Walker (1867–1919), popularizer of the straightening comb