Description The Genius weft is the best new trends in wefts, which creates the most perfect weft imaginable. This virtually invisible weft is almost as thin as a hand tied weft but can be cut for easy customization, and has no return hairs that can irritate the scalp. YoungSee Genius Weft is durable is exciting since hair is meant to be re-used. Stack up to 8 in one row and use it with almost all hair types. The slim design lays closer to the scalp providing a seamless transition with natural hair and a more comfortable wear. TYPE: Weft Hair Extensions (100% Virgin Human Hair) COLOR: Balayage Dark Brown to Light Brown Mixed Blonde #3/8/22 WEIGHT: 25g / bundle, 100-150g for a full head LENGTH: 16"-24" SETTING: Can be washed, dyed, cut, styled and curled TEXTURE: Natural straight, with a natural wave when wet or left to air dry or diffused. LIFESPAN: 6-12 months RECOMMENDED AMOUNT:   Minimum 4-6 bundles Medium Hair 7-9 bundles Thick Hair 10-12 bundles