Invisible & 4 Wearing Methods: Genius sew in weft hair extensions feature ultra-thin wefts that prevent scalp itching and provide a flat, seamless look. You can customize your style with 4 wearing methods: direct sew-in, clip-in, tape-in or micro beads 9A Virgin Hair & Double Lifespan: Crafted from 100% virgin hair, extensions boast intact cuticles for a smooth finish. They last 4-7 months with proper care, outlasting ordinary extensions by 2-3 times, ensuring no knots or frizz for a beautiful look Specification & Suggested Packs: Available lengths range from 14” to 24”. Pack weights are 40g for 14”, 50g for 16”-18”, and 60g for 20”-24”. For a natural look, 2 packs are recommended; for added volume and length, use 3-4 packs Genius Sew in Weft & Classic Weft: The hair is a thinner, lighter upgrade to the classic wefts, providing a more invisible finish. The classic wefts add volume. For a natural appearance, consider using both types together Color Difference & Matching: We offer a diverse range of hair colors to suit every customer. Color variations may occur due to lighting and monitor settings. If you're uncertain about your color choice, we provide a color matching assistance DOORES' hair extension products are made from high quality raw materials and undergo strict production process and quality control to ensure the quality and comfort of the products. We have a professional research and development team that constantly introduces new styles of hair extension products to meet the changing market and consumer needs. Our products not only have a natural, lifelike appearance, but also have good durability and ease of use, enabling consumers to change their hair style and image with ease. HOW TO CARE GENIUS SEW IN WEFT HAIR EXTENSIONS? a. Gentle shampooing: Use a sulfate-free, low-ph shampoo to gently cleanse extensions and natural hair. Avoid harsh friction. b. Proper combing: Use a wide-toothed comb or special hair extension comb to gently comb the hair, starting from the ends and working upward to avoid pulling on the hair extensions. c. Avoid heat: Minimize the use of heat styling tools such as hair dryers, curling irons or straighteners. If you must use them, make sure you use a heat-protecting spray and try to use a low-temperature setting. d. Avoid chemical treatments: Avoid coloring, perming or other chemical treatments on hair extensions as this can damage the extensions and natural hair.