Details: Product: bicycle password cable lock Material: steel cable PVC shell Color: black Lock cylinder: alloy lock cylinder Weight: about 72gAbout this itemSecurity Design: High quality metallic helmet lock, thickened with PVC coating to 0.182inch/4.6mm in diameter, anti-theft and preventing scratches. Of course, as a simple anti-theft deterrent, the motorcycle helmet locks are worth having for more security.Easy to use: The little helmet lock has a 4 digit code, very easy to set your desired code by turning the lock collar as the user manual, quick to secure and remove, easy to customize combination. (Tips: Take a photo to avoid forgetting the password.)Little&Light weight: Very lightweight not bulky but quite sturdy, easy to carry in your pocket and take it wherever you go. Perfect as a handy little helmet lock. Moveover, locking strollers and suitcases temporarily is also very convenient.Retractable Cable Lock: Stretch the cable lock up to the maximum of 59inch/150cm. When you rest, lock the cable lock and helmet together wrapped conveniently around the motorcycle or bicycle at will. Simple coiled structure allows long enough reach.Multiple Use: Lock bike wheels, baby strollers, skis, suitcases and luggages, provide basic protection.