HABA Ball Track Large Basic Set - 42 Piece Wooden Marble Run for Beginner to Expert Architects Ages 3 to 10 (Made in Germany) Who would think problem solving could be so much fun? Helps educates the laws of structural engineering and stimulates spatial thinking. Hardwood blocks with grooves, and holes are combined in a variety of ways with the end result of 6 marbles ringing the bell to signal success. Made in Germany of solid beechwood. This classic toy from HABA is the recipient of 3 prestigious toy awards: Dr. Toy Best Classic Toy, Dr. Toy Best Green Toy and Dr. Toy Best Vacation Product. Includes: zigzag track, bridge with bell, 4 redirection blocks, 2 tunnel blocks, 4 ramps, 14 rectangular blocks, 8 square blocks, 2 bridging blocks, 6 Columns, 6 marbles and instruction book. A wide range of ball track accessories sold separately for future expansion. Plus, this toy is fully compatible with all Building systems from HABA including My First Ball Track & Building Blocks.