Product Material: ABS, steel wire Size: Small size: surface diameter of 4 cm, steel wire length 65 cm; medium size: surface diameter of 4.4 cm, steel wire length 70 cm; large size: surface diameter of 5.2 cm, steel wire length 105 cm Colour: Black Quantity: 2 pieces Package content: 2*keychain 1.High-quality materials: The hook and key ring of this keychain are made of metal, and the round box is made of plastic, which is of good quality, durable, and can be used for a long time. 2.Retractable steel wire rope: The retractable stainless steel wire rope has high elasticity due to the use of materials, and is protected from corrosion by an anti-rust coating. Although the strap has stability and longevity, it still retains flexibility and flexibility. 3.Stable shell: sturdy, anti-drop, but surprisingly light. Use the strong carabiner to attach the key to your pants, bag, belt or backpack. Your key is firmly fixed and you will not notice destructive weight. 4.Wide range of uses: The retractable key chain can ensure that you can use your key ring, wallet, employee badge, exhibition ID, your access card or ski pass holder quickly and without damage. 5.Easy to use: The retractable wire pull cord can be extended, enough to comfortably reach the place your arm can reach. Allows easy opening of the door, allowing you to enter without entanglement.