Toroidal Bump 3x3 Rubik's Cube
cults3d
This is a Rubik's cube shape modded into a toroid, which means that the puzzle is solved just like a standard 3x3 except no stickers are needed on the puzzle because you can tell by the shape if it's solved or not. https://www.youtube.com/watch?v=CUKflV-uMXA&feature=youtu.be http://www.twistypuzzles.com/forum/viewtopic.php?f=15&p=344325#p344325
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