What is the role of a neck strip during a haircut?

The role of a neck strip during a haircut is primarily to prevent hair from falling onto the client’s skin and clothing. By placing a neck strip around the client's neck, the barber creates a barrier that ensures loose hairs, which can be irritating or uncomfortable, do not make contact with the client's skin. This enhances the overall comfort of the client during the haircut, as well as keeping their clothing clean from hair clippings.

Using a neck strip also helps to maintain hygiene, as it can be disposed of or changed between clients, reducing the potential for any hair or debris to be transferred from one client to another. The other options do not accurately capture the primary function of a neck strip in the context of barbering practices.