•STEM skills •75 Track Pieces, putting launcher, funnel hole •Compatible with other MindWare marble run •Learn Basic Physics and Problem-Solving Description "Putt" your imagination to work! Drive creativity and STEM skills as you build your own towering mini golf course and create fantastic marble action at every turn. Launch your marbles into one of the three holes in the putteing launcher. Watch as it goes slicing around the curves, spinning through the funnel and bouncing to the end for a hole in one! Hours of endless engineering fun for ages 4+. Marble Run comes with 77 track pieces and 20 marbles. Number of Pieces: 70 Suggested Age: 4 Years and Up CPSC Choking Hazard Warnings: Choking_hazard_small_parts Educational Focus: Creative Thinking, Fine Motor Skills Includes: Toy Building Components, Connectors, Marbles, Instruction Guide Material: Plastic Battery: No Battery Used