Retractable Cable Lock: Stretch the cable lock up to 59"/150 cm. When taking a break, lock the cable lock and helmet together and feel free to wrap around the motorcycle or bike. The simple coiled structure allows long enough distances. SAFE DESIGN: High quality metal helmet lock with thick PVC coating to 0.182"/4.6mm diameter, anti-theft and anti-scratch. Of course, as a simple anti-theft deterrent, motorcycle helmet locks are more worth having. EASY TO USE: The small helmet lock has a 4-digit combination, turn the lock ring according to the user manual to easily set the combination you want, fast attach and detach, easy to customize the combination. (Reminder: Take pictures to avoid forgetting the password.) Very light, not bulky, but very sturdy, easy to carry in a pocket and take anywhere. Perfect as a handy little helmet lock. It is also convenient for moving house, temporarily locking the stroller and luggage. MULTI-PURPOSE: Locking bike wheels, strollers, skis, suitcases and luggage for basic protection. Two styles of small cables lock together, making it more convenient for you to use, saving you the hassle of choosing, and you can also share with friends. Remarks: Dear buyer. The size is measured manually, the unit is CM, there is an error of 1-2MM, please refer to the actual product. The pictures are taken in kind. There will be slight chromatic aberration due to shooting light, angle and monitor. Please refer to the actual item received. Every product is inspected before shipping. Please rest assured to place an order. Piece: 2 Color: black Size: 150cm