SPECIFICATION Hair Type 7-Star Prime Remy hair Contains 4pcs/pack Weight 14″ 48g/pack, 16'' 56g/pack, 18″ 64g/pack, 20″ 72g/pack, 22″ 80g/pack, 24″ 88g/pack, 26″ 100g/pack Application 1–2 hours Reapplication every 12–18 weeks Lifespan over a year and a half with 90-day warranty Maintenance blend with natural hair and style seamlessly using hot tools set below 350°F Customizable We offer mass production tailored to your own brand, using either our color rings or yours. Full-head set Min. 3 packs for a full head