This handgun vault meets TSA and California DOJ standards with its 19-gauge walls, 16-gauge reinforcement plates, and pick-resistant key-lock. It's durable and secure, making it ideal for travel and legal compliance or even home storage. Inside Dimensions: 7.5" X 5.375" X 1.75"? 19-gauge Walls With Additional 16-gauge Side ? Bottom Reinforcement Plate With Key-lock Securement? Meets TSA Airline Requirements Approved By The California Department Of Justice? Pick-Resistant Key-lock