Interior: 66"H x 30"W x 17.333"D. Commercial Fire Rating of 350 2-Hour for documents and cash. Fire Rated MTC Class B 60 minutes for CDs, DVDs, USB Drives, and Memory Sticks. Impact Rated: The impact test includes dropping the safe 30 feet onto concrete rubble, then reheating in the fire. This simulates actual conditions in a fire when the floor gives out. Insured, warranted, and guaranteed to protect your documents from fire, water, and smoke damage. These safes are designed to prevent water damage caused by fire hoses and sprinklers. (3) shelves included with safe. A digital combination lock provides easy access as well as the ability to change the code as often as you like. Operates on AA batteries. Steel bolts provide security. Your purchase includes a 3-Year Parts and Labor Warranty on the safe and lock. Lifetime After-a-Fire Replacement Warranty: If your fireproof safe is ever in a fire it will be replaced at no charge.