- Demeras 310 U-lock designed for maximum security on bicycles and motorcycles - Made with hardened steel beam and PVC coating to prevent wear and scratches - Pure copper locking cylinder, resistant to forced opening attempts - Key system with internal milling slot for enhanced anti-theft protection - Easy to use and carry, ideal for securing bicycles, office doors, and shops - Includes 1 lock and 2 keys for greater convenience - Dimensions: 16.5 x 8 x 3.3 cm; weight: 570 g - Black color, robust and durable design