Hape Castle Escape Quadrilla Whirlpool Wooden Marble Run Construction System, Race Track Set Puzzle Maze Toy with Endless Build Variations, Smart Play for Families

STEAM-PRINCIPLE DEVELOPMENT : Helps develop spatial thinking and an understanding of Science, Technology, Engineering, Art and Maths (STEAM) principles; It will also develop your child’s cognitive thinking and improve their understanding of the cause-and-effect relationships that exist BELL SOUND EFFECT : Bells add a new sound effect to the marble run experience TRANSPARENT RUNS : Watch as the marbles race down the puzzle maze with the unique transparent runs that reveal the running marbles CONVENIENT MARBLE CATCHER : Marble catcher makes it easy to collect marbles at the end of the run ROATATING TOWER ADDS EXTRA FUN : Rotary tower releases marbles one at a time when the flag is turned SAFE TO PLAY WITH : This product is recommended for children over four years as there is a choking hazard due to the marbles; All the wood is finished to a high standard with child-safe materials