Heavy-duty 14mm hardened steel â Resists cutting, prying, and jacking for maximum bike protection in high-theft urban areasPatented multi-angle locking system â Anchors the shackle from multiple points to deter leverage and impact attacksSmart Keyless Access â Unlock via the BLACK X App (iOS & Android) or xKey remote, secured with 128-bit AES encryptionReal-Time Security Alerts â Receive activity notifications through the BLACK X App to monitor your bike from anywhereBackup Keys & Long Battery Life â Includes 2 mechanical laser-cut keys plus up to 2 years of use from the included CR2 batteryAvailable in standard or long shackle models14mm4.5`x11.5`BLE/KeyBlackNot IncludedSLBX-TI-ULLSUPC/EAN/GTIN: 850059247785