Equipped with two double-sided internal milled copper keys for low mutual opening rate. After that, the latch is automatically released. Just push the latch Ideal for outdoor parking and travel, perfect for bicycle enthusiasts and commuters who value bikes Zinc alloy high strength core, anti-rust The outer shell is PVC rubber sleeve, comfortable and will not scratch your bike Compact and lightweight, easy to carry, you can easily put it in your backpack or hang it on your bike when not in use for easy carrying Steel cable, excellent shear resistance and pry resistance, effectively prevent bike theft, Manufacturer: Rxgiasup