 
                            
                            
                            Son-Mum 4x4x4 II Cube - Black Body
                    The mf8 Son-Mum 4x4 II can still function like a regular 4x4, but if you turn one or both of the middle layers half way, you can unlock new moves and also scramble the inner pieces!  A difficult variant in the Son-Mum series.
                
                    
                    $52.34
                
                    
                    
                        
                


