Introducing Q-BA-MAZE 2.0 Rails - the same Q-BA-MAZE you know and love with the exciting addition of rails that send your marbles zooming their way from cube to cube! The 7.5" long straight-away rails attach easily to any single or double exit cube. Connect the rails to each other for even longer rolling runs. The unique design of precision-engineered Q-BA-MAZE cubes allow for limitless configurations and unique building options while the rails add the traditional motion of a classic marble run. The set also includes 4 marble catchers to put an end to run-away marbles. Q-BA-MAZE rails are compatible with all Q-BA-MAZE 2.0 sets. Recommended Ages: 8 Years And Up Use: Indoor Measurements: 11 Length/Inches, 11 Width/Inches, 6 Height/Inches Base Material: 95% Cardboard, 5% Other 5% Or Less Care: Wipe Clean Country of Origin: Imported