Retractable Coil Strap:Cobee spring coil key chain strap has a high-elastic and the spring rebound is good, not easy to deformation, long service life. Soft and durable, smooth, make you feel comfortable when using. Unique Design:Our spring key chain leash can be easily paired with anything, simple and easy design lets you more outstanding among friends. Flexible, stretchable, and can be spring back free after stretch out. High-Quality Material:Our coil spring key chains are made of premium plastic material and they will not become thin even stretch the spiral coil ring to its full extent. The keychain with a safe locking metal swivel lobster clasp. Snap hook is not easy to open and it can prevent your keys or another valuable item from being stolen or lost. Size:The size of our keychain is 18cm/7.08inch long and it can extend to 100cm/39.37inch. The size of the lobster clasp is 3.5cm/1.38inch and the size of the keyring is 3cm/1.18inch. Our product is lightweight, easy to carry and you can clip the keys and number tags on your belt or other places. Widely Application:Perfect for carrying keys, great for work, security ID badge, gym, pool, or beach. Great for home, sauna, shopping mall, office, and any other outdoor activities, spring coil key chains are a good choice to decorate and organize your small items.