Twist and turn to scramble the colours and try to make one solid colour per face. 

The Hollow Series presents an intriguing, innovative advance in twisty puzzles. The no-core puzzles’ movements are unlike anything experienced by even the most experienced puzzle-solver. With a combination of inventive gameplay and stunning design, 

Meffert Hollow series are one part gift, one part puzzle, one part treasure! 

Age 14 years +