The unique design of Q-BA-MAZE cubes allow for a limitless range of configuration options. The 7.5-inch straight-away rails connect easily to any cube or to each other to create tracks that send your marbles zigzagging through the maze of colorful cubes. Rails add on set includes 10 rails and 10 marbles.
• Compatible with all Q-BA-MAZE sets
• Cubes sold separately
• Marbles are nickel plated steel balls.