With five-digit code, it has higher safety factor. With the retractable and windable steel cable, the riding helmet can be easily locked on the bike.The outside is protected by a protective cover, which can not only effectively protect the chain, but also make the chain not easy to rust and corrode. With its small size, it is easy to carry.Made of metal and plastic material, the product is durable and anti-aging.The unfolded length is about 1.3 meters,It is suitable for bicycles, suitcases, helmets, backpacks, etc.Item Name: Bicycle LockMaterial: Plastic, MetalSpecification: BK041B(1300mm)Features: Anti-theft, 5 Digit, DurableSize Details: Roll Up Size: 160mm x 150mm x 40mm/6.30" x 5.91" x 1.58" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bicycle Lock1 x English-German Bilingual User Manual