Security Design - The lock is constructed with a metal inner body for durability and plastic covered cable for resistance, although it is 1/8 inch thick. Anti-theft security mode design slows down thieves when entering in some places momentarily. Simple Operation - Set your own four-digit combination by turning the lock collar as the user manual, it is up to 10,000 possible codes to set. It is quite suitable to the students for its and simplicity. Multiple Use - Lock bike saddles and wheels, baby strollers, skis, suitcases and luggages, laptop bags, providing basic protection. Portability - Easy to carry for the small body and light weight. Extension cable length is 5.9 ft (1800 mm), it could lock something within 2.85 ft. duty anti-theft lock could make thieves have no way to start, providing better protection. To set your own combination The digits are all preset at "0". Turn the reset collar clockwise until it comes to a stop (Red Part). Set your own combination and keep in mind. Turn the reset collar counter-clockwise until it comes to a stop at its position . Your personalized combination is now set and aligned with Guide Points (Green Part). colour: black Material: aluminum alloy + steel Package Contents: 2 * motorcycle password lock 2 * storage bag Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.