Why are Invisible Clip Ins more Invisible? 1. From the Clips side, For the Seamless Clip ins, the thread used to sew the clip is visible. But for Invisible clip ins, the thread is hided into the hair. 2. Different from seamless clip in weft, it is thinner and softer. So it fits the scalp better and is more invisible.  MRS HAIR 7PCS Clip IN Human Hair 【Size & Weight & Quantity】: 12 Inches = 30cm long, 100gram/Set 14 Inches = 35cm long, 110gram/Set 16 Inches = 40cm long, 120gram/Set 18 Inches = 45cm long, 120gram/Set 20 Inches = 50cm long, 120gram/Set 22 Inches = 55cm long, 120gram/Set 24Inches = 60cm long, 120gram/Set  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 1. Mrshair has opened this store on Aliepxress for over 15 years and only sells 100% human hair. We got over 92.5K fans already and it's not possible to ruin our brand by fooling clients. 2. About hair material, it's 100% human hair. Exactly to say, it's not "natural hair". That's because all the light colors are bleached colors basis on the natural black color hair. And the hair material is coming from Asian people's hair donors. So it's also the reason why this hair cannot be bleached again. 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. -- Enjoy Your Nice Time With MRSHAIR -- The Must-Have Fashion Item For Styling & Increasing Volume Meeting | Fashion Show | Weeding | Party | Birthday | Vacation -- Quick Styling -- To Meet Confident Yourself -- Enjoy Your Nice Time With MRSHAIR ~ Why the real hair color looks different from the description? Monitor Reason: Because the colors on the Monitors of different mobile phones and computers are different, we will use the displays of Apple mobile phones and computers as the standard, and try to show the pictures of the products as true as possible. But even so, we cannot guarantee that the color of your hair after receipt will be exactly the same as when you purchased it.