Tape Size & Tape Brand Size: 4cmx0.8cm; Brand: Strong Double Sided MRSHAIR Tape Used ! Hair Material: 100% Real Human hair Length & Weight & Package * 12 inches = 30cm, 40g per pack * 14 inches = 35cm, 40g per pack * 16 inches = 40cm, 40g per pack * 18 inches = 45cm, 50g per pack * 20 inches = 50cm, 50g per pack * 22 inches = 55cm, 50g per pack * 24 inches = 60cm, 50g per pack 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