✿Four digit password, ten thousand possibilities,safe enough and no need to worry about key lost.
✿Small and light, easy to use and quite convenient to take with.
✿Made of Φ3.7mm strong steel wire with PVC protective layer covered, stretched length is up to 1.5m/4.9ft, long enough to lock your helmet or bike.
✿This is a high quality zinc alloy helmet lock,solid, durable and weather-resistant, you can lock your helmet anywhere on the bike.
✿After unlocking, it will return to its original retracted state and be easy to put in a pocket instead of occupying a place.