Unopened, new item Phiten RAKUWA NECK WIRE Air Size: 50cm Color: Black/Red Ultra-lightweight type that you won't feel when wearing it. Weighing approximately 2.6g (※40cm), it achieves astonishing lightness! It's so light you'll forget you're wearing it, providing a comfortable fit that won't interfere with sports. The wire is made of "surgical stainless steel," which is resistant to rust and less likely to cause allergies. We've created a sleek design that blends sporty and stylish elements. ※Price is non-negotiable