Easy pull clasp with a stretch length of about 70cm. Chrome plated metal shell, plastic shell with various colors, elegant, small and light, but very strong and easy to use. The retractable rope can easily scan/slide and allow you to obtain badges, cards or keys in real time. The retractable ID reel provides an easy way to wear and track your ID. It is very suitable for nurses, nurses, office staff, students, factory workers, etc.