Twin Comet Cube Rare Mysterious Block Yoshimoto Fidget Puzzle (no packaging)

Description

Please note that these will NOT come with the packaging in the pictures 1,2,6,7 but it is the same product.
Colorful puzzle cube from the 1980s.
This toy is endlessly fascinating and can even serve as a fidget toy and therapeutic tool.
The outsides of the cubes are red and white and the insides are multicolored.
Item condition is new in original vintage plastic casing.
The Modern Museum of Art MOMA sells these for
The only difference is the sticker color. Theirs are gold and silver, these are multicolored!
The Yoshimoto Cube is a polyhedral mechanical puzzle toy invented in 1971 by Naoki Yoshimoto (吉本直貴 Yoshimoto Naoki), who discovered that two rhombic dodecahedrons could be pieced together into a square when he was finding different ways he could split a cube equally in half. The cube is made up of eight interconnected cubes which can be folded or unfolded indefinitely. The unfolded cube can be dissected and reassembled into two stellated rhombic dodecahedra, each of which comprise half the volume of the original cube, making it a kind of three-dimensional dissection puzzle. -- Wikipedia