20 Inch 100g, 8 pieces set: Each pack hair extensions includes 8 seamless wefts( 2x2”, 5x4”, 1x7.8” ) of 100% remy human hair(we have burn test video on detailed page). One pack provides full coverage for medium-density hair; choose 2 packs for extra volume.,Invisible & Seamless: Ultra-thin PU weft technology blends flawlessly with your scalp, creating a natural, undetectable look. Add instant length and volume in seconds-no bulky tracks or visible seams.,Secure & Comfortable: The flexible PU base conforms to your scalp for a snug fit, while the double weft design locks micro beads in place. No slipping, no tugging-just all-day confidence.,Eco-friendly & Reusable: No glue, no damage! Our micro ring installation is pain-free and gentle on your natural hair. Remove and reuse the extensions multiple times for long-lasting value.,Styling Freedom: Made from 100% human hair, these extensions c