Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sturdy and Weather Resistant

This "lockbox" is made of heavy-duty metal, is sturdy and comes with an all-weather cover to protect the face from the elements. It was easy to install and to set the combination. The only issue is that it requires a 6 digit combination and each digit (0 through 9) can only be used once. So the possible combinations are more limited than I would prefer as I need to change the code frequently.