The Fashion Seller-Mini Stainless Steel Anti-Lost Security Hook Buckle Keychain ~ 1) You can clasp one end of the anti lost keychain on the cell phone, clasp the other end on the cloth or bag 2) When the items had been stolen or lost, stretching will be pulled out reminding you immediately, with it, mobile phones will never be lost 3) Also you can hang it on the card case or key chain, just pull the card case or keys, you can open the door directly and it will back automatic after use, convenient and no need to afraid of losing, multi-function 4) Convenient and practical, multi-functional 5) With a retractable (max. 34cm) steel string