The FSDC TSA747RCB is a 3-dial TSA combination lock designed specifically for firearm safety and secure transport featuring a durable steel shackle construction.FSDC TSA747RCB 3-Dial TSA Combination LockTSA-approved for secure firearm transport3-dial combination mechanism for reliable securityDurable steel shackle constructionDesigned for firearm safety and storage applicationsManufactured by Firearm Safety Devices Corporation this lock helps prevent accidents and ensures your firearm remains safely locked stored or transported in compliance with TSA regulations.