Features1Small and lightweight, easy to operate, this product can lock your helmet firmly with three digit password. 2Retractable steel cable can be wound at will, riding helmet can be easily locked on the bike, which is safer and more convenient to carry. 3This lock is multifunctional, it can not only lock bike helmet, but also can lock bike, backpack and suitcase. 4Being small and light won't make you feel heavy when you travel, so you can carry it easily with your bag and pocket. 5Made of alloy, this lock is easy to use, corrosion resistant and durable.SpecificationItem Type: Bike Helmet LockMaterial: Steel Wire+AlloyColor: BlackProduct Size: Approx. 6.5x4x1cm/2.6x1.6x0.4inWeight: Approx. 90.0g/3.2ozApplication: Helmet, Bike, BackpackFeature: Small, Portable ,Soft and DurablePackage List1 x BikeHelmetLock1 x Spring1 x Manual