Butterfly Weft Hair Extensions Human Hair  12Inch 30cm 40g 14Inch 35cm 40g 16Inch 40cm 40g 18Inch 45cm 50g 20Inch 50cm 50g 22Inch 55cm 50g 24Inch 60cm 50g Concern Points Before Make Payment!!! 1 Is That Human Hair   All of Our Hairs Are 100% Natural Human Hair 2 Can The Hair Be Dyed ? Yes, It Can Be Dyed To Darker Color Only 3 How Many Days To Delivery By Fedex(extra 20$,Order Amount More Than 500$  for Free) It Will Take 5-7 Working Days to Delivery By Post (Free Shipping) It Will Take 12-40 Days to Delivery 4 How Many Grams For a Full Head? For Tape Ins & Tip Hair Extensions 50-100g Add Volume More Than 150g For Full Head For Clip Ins One Set For Add Volume, More Than 2 Sets, For Full Head  5 Can This Hair Be Straightened, Curled? Yes, it can be straightened and curled, but please don't do it too frequently if you want hair with a longer lifetime. If you restyle it each day, the lifetime may be 4-8 weeks and hair ends will be very dry. 6 Can I Return The Hair If I Don't Like It ? Yes, We Have 15 Days  Free Return Refund Policy Before You Return The Parcel, Tell Us You Need a Refund, We Will Try Our Best To Give You a Good Soluation How to Identify Human Hair and Synthetic Hair? --Firstly, get ready for a lighter and a little strand of hair ( At least 10 hairs）. --Then, burning the end of the hair for 3 Seconds. ********Human Hair******** ---Burns very quickly, and it smells like a burst fragranced. ---When the lighter is moved away, the fire will be extinguished immediately. ---After burning, it is easy to turn to be ashes. ********Synthetic Hair******** ---Smells like burning plastic, very pungent, and there is black smoke when it is burning. ---When the lighter is moved away, the hair will continue to burn for several seconds. ---After burning, it turns some small lumps. Please make sure your address is safe and valid In order to ensure that your package can arrive safely, please make sure that there is no problem with your address before placing an order. The P.O.Box address is very easy to lose the package. If you put the address in the P.O.BOX, the package shows that it is signed, lost or stolen, will not give you a refund for the dispute. Please Keep in Log in the app before receiving the goods, and check the latest status of the package in time to contact the post office or courier company in time. How to Do HAIR CARE Each Day？ 1. Wash the hair 1-2 times each week. 2. Warm Water washing, use a mild or Weak acid shampoo. Warmly Reminder Wash with shampoo afterward before using shampoo: Every time you wash, please wet your hair with warm water, and then apply conditioner evenly on the hair. This step is called Co-wash, which allows the hair to be activated and is not easy to knot and smoother.