Homwarm Bike Chain Lock with 3 Extra 800mm 8mm Diameter Wire Lock, Heavy-Duty Anti-Theft Keys, Thick, Long, Chain, Multi-Purpose, Bicycle/Motorcycle

[Extra Thick & Anti-Theft] The upgraded bike lock features an extra-thick 17mm diameter chain, making it sturdy and difficult to damage with external force or cutting tools. The copper key cylinder and key are strong and durable, providing excellent anti-theft performance, freeing you from the worry and stress of having your bike or valuables stolen. [Rust-Resistant] The chain lock body and alloy chain head are made of high-quality materials. The zinc-plated chain provides excellent corrosion and rust resistance. The chain surface is covered with a dust-proof cloth cover to prevent wear and tear and protect your car's paint. It is rust-resistant even in humid environments, so it can withstand any weather and provide reliable protection. [Dustproof Shutter Design] The chain lock is designed with a dustproof shutter to prevent dust, sand, etc. from entering the key cylinder and to prevent water from seeping in, extending the lock's service life. The dustproof design not only increases the lock's durability, but also reduces the need for daily maintenance, allowing for hassle-free and convenient use. [Easy to Open and Close - 3 Keys Included] The bike lock comes with 3 keys and is designed for ease of use. Simply insert the key into the lock and turn to unlock. The key can also automatically return to its original position after unlocking. The key has no reverse, allowing for easy unlocking in either orientation, enhancing flexibility and convenience. It is difficult to duplicate, providing greater security. [Quality Guarantee] The chain lock is available in four colors and three sizes, so you can choose freely. If you have any problems or questions while using it, please feel free to contact us. We will respond promptly. The upgraded bike lock features an extra-thick 8mm diameter chain, making it sturdy and difficult to damage with external force or cutting tools. The copper key cylinder and key are strong and durable, providing high theft protection, eliminating the worry and stress of having your bike and valuables stolen.