Curling iron

A curling iron comprising:

• a body formed in a bar shape and including multiple rolling ribs arranged on two peripheral sides of the body respectively, two stop portions individually fixed on a first end and a second end of the body respectively, wherein the multiple rolling ribs are arranged in a stepped shape and, two opposing rolling ribs of the multiple rolling ribs on the two peripheral sides of the body respectively do not flush with each other and are separated from each other, the body also includes an orifice defined on the first end of the body, and the body includes a hollow portion extending from the first end of the body to the second end of the body, wherein the hollow portion has two retaining slots respectively arranged on two sides of the hollow portion, and a heating plate is accommodated in the two retaining slots;
• a fitting sleeve including two locking portions respectively arranged on two sides of the fitting sleeve so as to correspond to the two retaining slots of the body;
• a plug, a diameter of which is equal to that of the orifice of the body;
• multiple clampers, each of the multiple clampers including a fixing portion and a clamping portion;
• wherein the fitting sleeve is fitted into the hollow portion of the body, the plug is accommodated in the orifice of the body, and each clamper clamps the body.