Amazon.com : Halos Hair Extensions, Fish Line Hair 。Brand new, never worn, and in flawless condition — these invisible wire clip-in hair extensions deliver instant volume and an undetectable blend for a natural, elevated look perfect for daily wear, workouts, or special occasions. The design is featherlight, secure, and incredibly comfortable. ? Condition: Brand New ⭐️ Features • Sweat-proof & slip-resistant with medical-grade silicone-lined clips • Reinforced wire lock for security during activity • 5-minute application with beginner-friendly tutorials • Transparent fish line technology for seamless blending • Heat-safe up to 360°F for styling • 6+ month lifespan with proper care • Hypoallergenic lace & nickel-free clips for sensitive skin • 2-in-1 detachable clip system for ponytail or full volume • 70-95g featherlight design for all-day comfort fast shipping, smoke-free home, bundle & save B0F2SYXBHT