Explosionproof chain construction cannot be continuously lifted, crushed or sheared, providing strong resistance to tampering. Bold pure copper rock core. The core material contributes to overall security and durability. Large locking space with antilift chain lock. The big lock area enables locking at many locations for flexible use. Lock core milling key. A pure copper lock core is not easy to pry open, adding security. Doublesided keys are difficult to copy, enhancing vehicle safety. Alloy rock beam. shear resistance ensures the lock remains intact under force. The lock beam is heattreated and insulated for stronger performance. Use scenarios Securing motorcycles, bicycles, or scooters in public or shared parking areas to deter theft and prevent tampering. Locking a car or other vehicle in a garage, parking lot, or street to improve protection against theft. Securing gates, storage cabinets, or tool chests in warehouses, workshops, or loading zones where strong tamper resistance is required. Specifications and attributes Material: Explosionproof chain, pure copper lock core, alloy rock beam. Security features: Antilift design, doublesided keys, hardtopry core, heattreated beam. Performance: resistance to lifting, shearing, and prying; robust construction for reliable protection.