Marble Run Coaster 106 BIG Elements Kit 76 Blocks+30 Plastic Marbles. Tracks length 194" Genius Fun Set. Learning Railway Construction. TEVELO DIY Endless Design Maze, Classic Toy for Family. 75 bright colored pieces of various shapes (curves, ramps and chutes) + 30 Race safe Plastic Marbles Stimulates creativity and reasoning, Basic physics, Fine motor and problem solving skills Fantastic educational toy that combines basic learning skills with coordination and organizational skills Set up multiple marble entry points to create an exciting marble coaster race Tevelo is committed to provide the most imaginative toys along with the highest safety standards