The collar is an important point that represents the dignity of a kimono. The beauty collar is designed to create a beautiful neckline and a full, graceful line, further enhancing the elegance of the kimono. There's no need to sew it on; simply thread the collar string through the back string loops, allowing you to freely adjust the neckline from casual to formal wear. This item is unused and has been stored. When shipping, I will remove it from the box and send it in an A4-sized package.