Halo Hair Extensions is a new trend of extensions to add your hair volume and length in seconds.There is a undetectable wire on the weft which you could adjust to tighten or loosen to fit your head.Reasons why you choose HIKYUU Halo Hair Extensions-Safe and healthy. No clip,no glue,no damage to your hair.-Convenient. Easy to put in /style and quick to take off.-Make you feel confident. Gives you longer, thicker hair in literally seconds.-High quality. The string is strong and not noticeable.-Invisible. Blend with your hair seamlessly.-Save you money. Affordable and of low maintenance.-Long lasting. Can last for more than 6 months with your good maintenance.DetailsMaterial:100% remy human hairLength:16”,18”,20”Weight:70g-16inch,80g -18inch,90g-20inchWeft Width:11inchTexture: Straight, will be slightly wavy after washing which is normalLifespan:6-24 monthsApplication method:-Step 1:Adjust the wire and put your halo hair extensions on your hair.-Step 2:Use a tail comb to pull out your hair under halo extensions.-Step 3: Tidy up and style your hair with comb.You could sew clips on the weft to make the halo weft more fixed and tight.❤E-mail us at any time when you have any problems, we will reply you in a quick manner❤