Ultra-Strong Security & Durability - Built with heavy-duty hardened steel link plates delivering near U-lock level strength and flexibility, providing unbeatable protection for bikes, e-bikes, and scooters in high-theft urban areas. Advanced Anti-Theft Z-Cylinder Core - Precision-engineered Z-Cylinder resists picking, pulling, and drilling attempts, offering maximum resistance against theft and tampering while maintaining smooth key operation and long-lasting performance. Compact Foldable Design for Easy Transport - Innovative folding structure allows the lock to collapse into a compact shape, making it easy to store in a backpack or mount, ideal for daily commuting and on-the-go riders seeking portability. Protective Rubberized Coating & Rugged Build - Full-body rubber coating prevents scratches and frame damage while sealed link joints ensure durability and resistance against rust, moisture, and outdoor exposure in any weather conditions. Complete Security Set with LED Key - Includes five precision laser-cut keys (one equipped with an LED light for nighttime convenience) and an integrated keyway cover that keeps out dust, dirt, and water for smooth and reliable performance. The OnGuard Heavy Duty Link Plate Lock K9 (3.69 ft) redefines compact bike security with its robust folding plate design crafted from hardened steel for maximum resistance against cutting and prying. Designed for urban riders and e-bike commuters, the K9 lock combines near U-lock strength with portability, folding neatly into a compact package for easy transport. Its Z-Cylinder core ensures advanced protection from picking and drilling, while the rubberized coating prevents scratches and corrosion. Complete with five laser-cut keys-one featuring an LED for low-light access-this lock is the perfect blend of convenience, resilience, and high-security performance for all cycling environments.