It is resistant to temperatures of up to 860 °C for at least 30 minutes, ensuring that your valuables are safely stored in the event of a fire. Water also poses no threat to the document box, as it remains waterproof even when fully submerged. The document box has a volume of 5.5 liters, providing enough space for A4-sized documents. It is securely closed with a clamp lock, which comes with two keys for locking the box. A practical carrying handle allows for comfortable transport. Please ensure adequate ventilation by regularly opening the box to prevent increased humidity in the airtight interior.