Features： 1、High Strength A3 Lock Body: The bike chain lock features a sturdy A3 lock body, providing enhanced resistance against sawing. The lock body is wrapped with a wear-resistant polypropylene cloth cover, offering effective protecting for your bike\u0027s paint from dust and scratches. It ensures long-lasting durability, keeping your chain intact. 2、Zinc Alloy Lock Cores with Sliding Lock Cover: Equipped with an environmental friendly ABS lock head and a zinc alloy lock cores, it is both robust and with nice durability. It guarantees smooth unlocking and provides nice anti-theft performance. The sliding lock cover design allows for easy opening and closing, effectively preventing rainwater, sand, and rust from entering the lock cores. 3、Two Keys Included: We provide two keys for your convenience—one for daily use and the other as a spare in case of loss. The snake-shaped grooves design of the keys adds complexity, making it highly difficult to duplicate or steal. 4、Keyless Locking: Say goodbye to the hassle of carrying keys. With the bike lock, you can effortlessly lock your beloved bike by simply fastening it. This simple locking mechanism ensures quick and convenient safety. 5、Versatile Application with Extended Length: The bike lock is not limited to bicycles only—it can also be used to secure motorcycles, electric bikes, gates, doors, fences, and more. Its extended length of 93.5cm allows for easy wrapping and locking of multiple vehicle, making it incredibly versatile for various purposes. Specification： Features: High Strength A3 Lock Body: The bike chain lock features a sturdy A3 lock body, providing enhanced resistance against sawing. The lock body is wrapped with a wear-resistant polypropylene cloth cover, offering effective protecting for your bike's paint from dust and scratches. It ensures long-lasting durability, keeping your chain intact. Zinc Alloy Lock Cores with Sliding Lock Cover: Equipped with an environmental friendly ABS lock head and a zinc alloy lock cores, it is both robust and with nice durability. It guarantees smooth unlocking and provides nice anti-theft performance. The sliding lock cover design allows for easy opening and closing, effectively preventing rainwater, sand, and rust from entering the lock cores. Two Keys Included: We provide two keys for your convenience—one for daily use and the other as a spare in case of loss. The snake-shaped grooves design of the keys adds complexity, making it highly difficult to duplicate or steal. Keyless Locking: Say goodbye to the hassle of carrying keys. With the bike lock, you can effortlessly lock your beloved bike by simply fastening it. This simple locking mechanism ensures quick and convenient safety. Versatile Application with Extended Length: The bike lock is not limited to bicycles only—it can also be used to secure motorcycles, electric bikes, gates, doors, fences, and more. Its extended length of 93.5cm allows for easy wrapping and locking of multiple vehicle, making it incredibly versatile for various purposes. Specifications: Color: Black/Orange(optional) Lock Material: A3 Iron + ABS + Zinc Alloy + Polypropylene Cloth Key Material: Copper Lock Length: 935mm/ 36.8in Item Weight: About 305.5g/ 10.8oz Package Size: 245 * 170 * 30mm/ 9.6 * 6.7 * 1.2in Package Weight: 330g/ 11.6oz Packing List: 1 * Bike Lock 2 * Keys Package List： 1 * Bike Lock 2 * Keys