Tetrahedral shaped brain teaser starts looking like a pyramid but quickly changes with each turn. Twist to change shape & color, then solve to get all sides the same color! – Internal spherical spring construction allows for smooth turning. – Colored plastic sides remove issue with moving stickers. – Challenge yourself, challenge your friends!
Ages: 6 + | Players: 1
Features
Novice to Pro
Whether you a pro or novice, Mental Block is perfect for you!
Great Price
A high quality puzzle game for economical price!
Unlimited Creativity
Twist and turn to create your own unique shapes!
