The Genius Weft represents the latest trend in hair extensions, offering an incredibly perfect and virtually invisible design. This hair extension is almost as thin as a hand-tied weft and features the advantage of a machine weft that can be easily cut to meet your needs, along with a no-return hair design to prevent scalp irritation. The YoungSee Genius Weft is durable and designed for reuse, allowing you to stack up to 8 in one row, making it compatible with nearly all hair types. Its slim design lies close to the scalp, providing a seamless transition with your natural hair for a more comfortable wear. Product Details TYPE: Weft Hair Extensions (100% Virgin Human Hair) COLOR: Photographed from the actual product, but the color may vary slightly due to lighting, angle, and monitor settings. 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