The Meffert's Hollow Cub 2x2 logic cube from the Hollow series offers an interesting and innovative puzzle in the speed cube category. The movements of the coreless puzzles are completely different from the more typical ones in this category, which have been successfully solved by the most experienced players over time. With a combination of clever gameplay and stunning design, the Meffert Hollow series makes an interesting gift and a puzzle treasure. This is the 2x2 version, a simpler variation compared to its larger 3x3 sibling. Recommended age: 14+ years. Set dimensions: 18 x 9 x 9.5 cm.