For short hair, a short iron is more suitable than any other type. These devices come in different sizes. Size 5/8 inch is a better option for tight and smooth curls, while a 3/8 inch is suitable for bangs, and soft/tight curls. 1'', 1ΒΌ'', 2'' barrels are the other sizes available in the market. You need to choose the one that matches your hair.