Can you master the labyrinth with your steady hand and concentration? Great tool for coordination and balance, cognitive ability, spatial cognition and observation. Puzzle fun for everyone. Want to compete with your friends? The winner is the one to get the 3 balls into the center in the shortest time! Made of highly durable plastic with a bit of weight to it. Top half of board measures 5.25" and rounds inward for balancing and measures about 2"