Clip on locks, also known as barrettes, are a type of hair accessory that is used to hold hair in place. They are typically made of metal or plastic and have a clip on one end that is used to attach the BARRETTE to the hair. The other end of the BARRETTE usually has a decorative design or shape. Clip on locks are a popular choice for people who want to keep their hair out of their face without having to use a lot of styling products.