Need help with how to store balsamic vinegar

Hello! I’m not sure if this is the right subreddit, but we tried true 25 year old balsamic vinegar tonight and it was amazing! I’m just not sure how to store it. I’m assuming in the cabinet. There’s a small glass spout attached to the cork, and a small orb shaped glass we aren’t sure what to make of. I’m not a chef by any means, but wanted to surprise my partner with this gift and he was so happy to try this for the first time. Wish I could post a photo here, please let me know if you have any guidance. Thank you! submitted by /u/jumpingnoodlepoodle