Sorry for the bad quality picture, you can get these through Amazon and other online pet shops. Four per tank lid, I like to see the ball python that could pop this one (with the matching Zilla screen top).
Trust me they’re extremely strong, I’m surprised more people don’t know about these.
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^^^^ I have these as well. Or at least I did. I've just switched to a tub. But when he was in his tank, these were very strong and kept his screen lid in place. I recommend them.