It's a screen top covered with plastic wrap. It's a ceramic heat emitter and a a heat mat. So far the foil has been working as an insulator. His tank is also a little close to my window so it loses heat fast, fine in the summer not so great right now. I wanted to try something that could be easily removed if it wasn't working or getting too warm. I'm super happy with how everything turned out! I still have some more stuff is like to add but I'm going little by little haha. My baby girl is in I think a 20gal aquarium that's holding heat much better with the pad an Che. In the summer I don't even need the emitters on.
Ps the animal print is a reflection lol he actually has a faux wood inset so the back looks kinda like a tree haha
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