Question: what are the different grades of natural hair?
Answer: Type 1 – Straight Hair: This type of hair is naturally bone straight and not typical of African-Americans or “black hair.”
Type 2 – Wavy Hair: Soft or deep waves with little to no curl. ... 
Type 3 – Curly Hair: Unique texture. ... 
Type 4 – Coily / Kinky Hair – Very tightly curled and wiry.