Introducing Q-BA-MAZE 2.0 Rails by MindWare - 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 in 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. Includes: 40 single-exit cubes 20 bottom-exit cubes 20 double-exit cubes 10 straight-away rails 4 marble catchers 20 marbles Ages: 6 and up Recommended for 1 or more players WARNING: CHOKING HAZARD - Small parts Not for children under 3 years of age Made in China Imported Product Specifications 11 in x 11 in x 6 in Material & Care Plastic Wipe clean with dry or damp cloth