It is resistant to temperatures of up to 840 °C for at least 30 minutes, ensuring that valuables are safely stored in the event of a fire. Water cannot harm the document box either, as it remains waterproof even when fully submerged. The document box has a volume of 4.9 liters and is securely closed with a clamp closure. The clamp closure comes with two keys that allow the box to be locked. A practical carrying handle enables comfortable transport. Please ensure adequate ventilation by regularly opening the box to prevent increased humidity in the airtight interior.