DescriptionMade of carbon steel and zinc alloymaterial, anti-rust, strong and durablefor use, not easy to break, wear-resistant, weather resistant, long serving life. It can be used to lock your bike, bring huge convenience when you are riding at outdoor, and prevent your bike from stolen.Features-Color: Black-Material: carbon steel, zinc alloy -Size: 18.00X13.00X2.60cm/ 7.07X5.11X1.02in - Keys unlocking, easy and convenient for use, no need to set the password and will not afraid of forgetting the password. - Compact size and portable, easy to carry around without too much burden. - An gift choice for any bike lover, provide them an way to lock their bike. - U shaped lock for bike, and comes with a quick-release installation buckle, you can easily attach it on your bike. - Dont risk your bike getting stolen, use it to protect your bike, cut-resistant, leverage-resistant and drill-resistant.