these look like someones trying to play a perspective trick on me

how are they not the common/normal d12s

Count the edges of each flat face - five on a normal d12, four on this one

ah i meant "how are they not" incredulously, as in these should be the ones endorsed by the creators

i've always had a hard time differentiating between a d12 and its neighbors at a glance, but this would make it clearly stand out from the other shapes