Features: Made of durable steel cable material, it has excellent shear and prying resistance, effectively preventing bicycles from being stolens. Zinc alloy high-strength lock cores, anti-corrosion and rustproof. The outer shells is made of PVC rubber sleeve, which comfortable and will not scratch your bike. Compact and lightweight, easy to carry, it can be easily placed in a backpack or hungs on a bicycles when not in use, making it easy to carry around. Equipped with two double-sided internal milling coppers keys, with low mutual opening rate. After unlocking, the latches will automatically release. To lock, simply press the latches. Great for outdoor parking and travel, this lock is perfect for bike enthusiasts and commuters who value the safety of their bikes. Specifications: Material: Pvc+Steel Cable+Zinc Alloy Color: Black/Orange/Blue/GreenColor Size: As Shown In The Picture Package Includes: 1x Rings Shape Bike Lock note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.