Complete Kit: 2pcs 9.8cm*4.2cm retractable easy to pull, retractable cord up to 60cm, allow you to swipe your card or ID without removing it, easy to open the door, no tangling. Unique design : Easy pull loop with key ring and key chain, with telescopic steel wire inside, steel wire thickness is 1mm, strong enough to hold the weight of most keys without slipping all the time. Reliable Quality: The easy-pull loop is strong enough to put the key ring on the belt and the key on the key ring, and it can be stretched to open the door when using. Drop it when not in use, it will automatically spring back to size, avoiding frequent key loss due to random throwing. Snap Separation Design: You can easily remove the snap from the key ring as you wish it. It is a useful tool for adults and children, suitable for family camping, hiking and other outdoor activities, preventing loss and keeping it clean and tidy. Wide Application: The retractable keychain can be widely used in office, home and outdoor activities, such as fishing and hiking, and can be used with ID cards, access cards, keys , etc.