1.Grade :7A,6A,5A,4A Grade 7A,6A,5A,4A is of same good quality.The difference lies in short hair proportion,the former is of less short hair than the latter.See below picture for your reference.
3. Dry Hair EndsIf you find some hair end is dry. Don’t worry. Because sometimes the hair will be a little dry after high temperature steam processed, especially longer virgin hair. With right condition and moisture treatment to the hair, it will help a lot.