How to solve: Look at a normal skewb and notice that there are 8 corners. They correspond to the 8 equilateral triangles in the Box cube.
A normal skewb as 6 big squares or centers. They correspond to the 4 big double triangles plus the 2 big squares at the end.
If you've never solved a regular skewb before, don't start with this!
This puzzle is also known as The Container and it was invented in 1998 by the great Tony Fisher: https://twistypuzzles.com/museum/museum_showitem.php?pkey=887
This puzzle is a little gem.