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 0.182inch4.6mm 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 59inch150cm. 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.