SPECIFICATION Hair Type 7-Star Prime Remy hair Contains 14″-20″ 0.8g/pc, 22″-26” 1g/pc, 25pcs/pack Weight 14″-20″ 20g/pack, 22″-26” 25g/pack. Application 1.5-3 hours Reapplication 6-9 weeks Lifespan over a year and a half with 90-day warranty Maintenance Avoid use of oils or silicone-based products near the attachment. Customizable We offer mass production tailored to your own brand, using either our color rings or yours. Full-head set Min. 6 packs for a full head