Hair straightener and curler

A hair straightener and curler, comprising:

• two hinged clamping plates capable of being opened or closed relative to each other;
• at least two first heating elements (11) that have first heating surfaces (111), and the first heating elements (11) are arranged on the clamping plates;
• and at least the two first heating elements (11) are arranged, and the first heating surfaces (111) thereof are opposite and are respectively arranged on the two clamping plates;
• a second heating element (12) has a second heating surface (121), the second heating element (12) is arranged on at least one of the two clamping plates, the second heating element (12) is telescopically arranged between a first position and a second position, an extension and retraction direction of the second heating element (12) is basically perpendicular to the first heating surfaces (111), and the clamping plate on the opposite side of the second heating element (12) is provided with an accommodating cavity (22) for accommodating the second heating element (12);
• when the second heating element (12) is at the first position, the highest point of the second heating surface (121) is lower than or flush with the first heating surfaces (111) in the same clamping plate;
• and
• when the second heating element (12) is at the second position, the highest point of the second heating surface (121) is higher than the first heating surfaces (111) in the same clamping plate.