Rekubus dice, fluorescent & noctilucent

Fluorescent & black, glow-in-the-dark puzzle cubeto assemble into a fixed dice (without instructions)
--> NOT the same as the magic dice !!!

delivered in 38 pieces
Only a few pieces left in stock

1. find out how to assemble the cube stably and firmly.
2. once the construction principle is understood, the individual parts should be assembled as shown in the illustration.

Edge length of the cube: 64 mm.