A: For hair wefts, 3pcs for 10-22inch, 4pcs for 24-40inch. If you want to get a very full look, you might need another pack. If you are getting fusion or micro then you will need to consult your stylist. Q2. How long does it last? A: This hair can last for a very long time depending on how you maintain it. Treat it like your own hair and take very good care of it for it to last longer. If you take good care of the hair, it last for over one year. Q3. Why are my hair extensions getting tangled? A: Your Unprocessed cheap 7a 22" mink brazilian straight hair weave bundles can tangle due to being to dryness, oil & dirt build-up, salt-water, chlorine and not combin(wide tooth comb) out your hair daily. Make sure to wash & condition your hair at least once a week, twice a week is better. Use hydrating drops or consult your stylist for more help. Q4: Can they be straightened,dyed, curled ? A:Yes you could use hair straightener or hair curler to style the virgin human hair . However, don't do it too frequently, or the heat will make the hair easily get dry and tangled. Q5.How long take delivery? We ship the parcel by Fedex, UPS or DHL. Normally need about 2~3 workdays to USA. 3~4 workdays to UK. And 5~6 workdays to Africa and other countries. Q6.What is your payment terms? Dear, we accept western union, money gram ,TT and paypal. If you pay via western union or money gram, pls kindly check send us the MTCN. We also need your receiver name, address, phone number, zip code, email, so that we can delivery our hair for you at first time when we receive your full payment. 2. To avoid delivery lost, return should be arranged by register airmail, and the shipping fees of return should be paid by the buyer. 3. Please make the items remain the original state. We only accept not damaged items.