【Extendable Nylon Cord】2 pcs retractable ID card holder, the easy-pull buckle is strong enough to put the keychain on the belt, retractable cord up to 60cm, and it can be stretched to open the door when in use. Release it when not in use, it will automatically spring back to the waist, avoiding the frequent loss of keys caused by random throwing.【Unique Design】Elastic string with reasonable length and easy to use. Each ID card has a keychain and plastic buckle, suitable for multiple attachment points for keys/ID cards a must-have for staff, easy to attach your badge and ID card.【Snap Separation Design】You can easily remove the snap from the keychain as you like. It is a useful tool for adults and children, suitable for family camping, hiking and other outdoor activities, preventing loss and keeping it neat and tidy.【Wide Range of Uses】Retractable keychain can be widely used in offices, homes and outdoor activities, such as fishing and hiking, and can be used with ID cards, access cards, keys, etc.【Note】The retractable keychain is designed to be lightweight and easy to stretch. It is very durable and firm for light items, the design function is only applicable to light items, such as ID cards, entry guard cards and key others, please do not use heavy items or pull them to the bottom of gravity, which can easily damage the telescopic spring.