- Premium Quality: Crafted from high-quality alloy aluminum, this bicycle chain lock features a robust design with concave and convex inlays along the seam. Its durable construction ensures long-lasting use and effective anti-theft protection. - 5-Digit Code Lock: Experience enhanced security with a 5-digit code lock that offers 100,000 possible combinations. This keyless design eliminates the need for keys, providing convenience and peace of mind. - Lengthened and Thickened Chain: The anti-theft chain lock boasts a lengthened chain made from a strong combination of steel alloy and nylon. This design is dirt-resistant and built to withstand wear and tear, ensuring reliability. - Keyless Operation: Easily lock and unlock your bike by turning the number dials. The keyless mechanism allows for quick and hassle-free operation, making it perfect for daily use. Use Cases: - Ideal for securing your bike while parked at work, school, or during errands, ensuring it remains safe from theft. - Perfect for use in urban environments where bike theft is common, giving you confidence in your bike's security. - Great for outdoor activities like cycling trips or camping, providing a reliable locking solution for your bicycle. With its combination of premium materials, innovative security features, and practical design, this bicycle chain lock is the perfect choice for anyone looking to protect their bike effectively.