FYI
This is a 60% case made by a team in china
they didnt tell about the title of their team, but the one opening post is called "Uncle"
they also produces aluminium palm rests too
and their product should be all made of 7075 aluminium
Zeal has talked about its similarity to hammer's case,
and yes they were challenged severely by the community. (originally no zig-zag)
But seems that they have modified their design now

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