Q1. What's the difference between the different hair grade?
Grade 6A: 100% human hair, non-remy. Affordable products, good quality for daily use; Can be bleached to #18.
Grade 7A: 100% virgin remy hair. Benefit products, high quality for people who pursue fashion; Can be bleached to #27 and take color easily.
Q2. How many pieces for a full head?
For all the bundles same 100g, the longer the length is, the thinner the hair bundle would be. Here is a general guide: For Average Head Size, 12-14inch 2-3pcs, 16-22inch 3pcs, 24 inch 4pcs.
Q3: How long the hair last?
Depends on the hair quality and use care. Grade 6A can last 6-12 months with proper care, Grade 7A last 1-2 years with proper care.