DescriptionMade of premium zinc alloy material, this 4-digit password lock has thickened steel cable, waterproof and rustproof, strong and sturdy, keeping your bike safe. Also, it can keep your helmet being stolen.Features-Color:Black-Material: Zinc alloy-Size: About 150.00X0.37X0.37cm/ 58.95X0.15X0.15inch- Thickened material, password unlock, security and anti-theft. - Zinc alloylock, wear-resistant and durable. - It can perfectly protect your mountain bike and other kinds of bike.- It can also keep your helmet from being stolen.- Password lock, convenient and reliable.