Is this post box waterproof?

This product is manufactured with plastic injected with ABS. ABS plastic is known for its high tensile strength and excellent resistance to both physical impacts and chemical corrosion, making it highly durable and capable of withstanding heavy use in various environments. Its robust nature enables it to endure adverse conditions such as extreme temperatures, moisture, and exposure to harsh chemicals. The postbox is weatherproof and will protect the contents under most conditions.