Void 5x5x5 a variation of Okamoto's award-winning Void Cube, a Rubik's Cube with missing centers. This version is completely hollow as well, and it has 24 peep holes to see the spherical void inside.
Watch the YouTube video
Read at the Shapeways Forum
Read more at the Twisty Puzzles Forum
Please contact Oskar directly if you are interested in obtaining a fully colored, stickered and assembled sample of this puzzle.