What this product does A combination bike lock with a robust, self-retracting cable that extends up to 12 m. Use it to secure your bicycle and helmet to fixed objects without needing a separate helmet cable or extra locks. Key benefits Long reach: 12 m self-retracting cable lets you loop around large or awkward anchor points (bike racks, posts, railings). Tangle-free storage: self-retracting mechanism keeps the cable neat and compact when not in use. Keyless convenience: combination locking eliminates the need to carry keys. Compact and portable: folds away into a small housing that fits easily in a bag or under a saddle, taking minimal storage space. Wide compatibility: designed to work with all common bicycle types and helmet styles, including full-face (integral) and half-shell helmets; suitable for city bikes, mountain bikes, motorcycles and scooters. Features and performance Lock type: combination lock for easy, keyless operation. Cable length: 12 meters when fully extended, allowing flexible anchoring options. Compatibility: works with all bicycle types and both full-face and half-shell helmets. Portability: compact housing and retracting cable reduce bulk and make carrying simple. Practical use scenarios 1. Commuter stop: secure your bike to a public rack and loop the cable through your helmet so you can safely step into a shop or office without leaving your helmet unattended. 2. Multi-vehicle parking: park and lock a bicycle or scooter at a shared parking area, using the long cable to reach distant fixed anchors. 3. Outdoor break during a ride: secure both bike and helmet to railings or posts while you rest, eat, or take photos without worrying about theft. Why customers choose this lock It combines a long, flexible reach with a retracting, tangle-free design and simple combination operation. The lock’s compact form and broad compatibility make it a practical choice for commuters, recreational cyclists, and riders of scooters or motorcycles who need a convenient way to secure both bike and helmet.