Amazon.com : Vivien 24 Inch Micro Link Hair Extensions Human 。Brand new, never used, and in flawless condition — these premium human hair extensions deliver a seamless, natural look perfect for adding length, volume, and styling versatility. The hair is soft, tangle-free, and incredibly lightweight. ⭐️ Features Remy Human Hair: Features unidirectional cuticle technology for silky and tangle-free results; curl or straighten for a seamless salon finish Cold Fusion Tech: Uses a cold fusion method requiring no glue, heat, or chemicals; gentle process protects natural hair Lightweight Design: Single-strand installation ensures even distribution for a natural, lightweight feel with no heavy burden Anti-Slip Hold: Silicone-lined rings provide an inner grip to prevent slippage and cushion hair for a secure, long-lasting stay Multi-Tonal Match: Uses advanced dyeing for vibrant shades; can be dyed light to dark (bleaching not recommended) Seamless Invisibility: Tiny, color-matched beads lay flat against the head for a seamless, natural blend ? Condition: Brand new ? Measurements 24 inch length 50 gram weight 50 strands included ? Materials / Fabric 100% human hair Remy quality with unidirectional cuticles fast shipping, smoke-free home, bundle & save B074P4QBPL