The type of hair texture desired determines the ______ and ______ of perm rods.

• A. Size, Character
• B. Length, Width
• C. Color, Porosity
• D. Density, Flexibility

Answer: (A)

The curl you’re aiming for comes from two properties of the perm rods: their size and their character. The diameter of the rod sets how big or small the curl will appear—larger rods give looser, softer waves, while smaller rods produce tighter curls. The rod’s character, meaning its shape and the way it wraps the hair (straight, curved, spiral, etc.), influences the curl texture and pattern you’ll get. So when you plan the perm, the desired hair texture guides both the size and the character of the rods you choose. For soft, relaxed waves you’d opt for larger rods with a gentle wrap character; for defined, tight curls you’d choose smaller rods with a more constraining rod shape.