Gerbilarium toppermail

I think you may have made a slight mistake!

I'm assuming you meant to type "Gerbilarium" and "Toppermail" as two separate words. Here's what I found:

• Gerbilarium: A gerbilarium is a type of enclosure or habitat designed specifically for gerbils, a type of small rodent. It's often used in zoos, pet stores, or as a home for gerbils as pets.
• Toppermail: I couldn't find any information on "Toppermail". It's possible that it's a made-up word or a typo. If you meant to type something else, please let me know and I'll do my best to help!