MAGIKON Wooden Brain Teaser , Snake Cube , Puzzle toy 60mm 2nd Version CHALLENGE TO YOUR BRIAN:this is a nice brain tease which can bring your brain challenge. NICE GIFT:give this to children.It is a nice gift. LEVEL:junior level.There is no difficulty in taking it apart (actually stretching the cube into a snake) but will take patience to put it back into cube shape again OPERATION:The corners of all the cubes are rounded and that makes for very smooth operation MAGIKON is a Registered Trademark.