Marble Run Coaster 85 Set, 240" Rails Length, 55 Building Elements 30 Plastic Race Marbles. Learning Railway Construction. TEVELO DIY Build Genius Maze Family Game, Endless Fun Design Tower Track MORE then 240 inches length marble trail !!! 55 bright colored elements of various shapes (curves, ramps and chutes) +30 Plastic marbles Fantastic educational toy combines basic learning skills with coordination and organizational tasks Stimulates creativity and reasoning, Basic physics, Fine motoring and problem solving skills Set up multiple marble inserting points to create an exciting marble coaster race Tevelo is committed providing the most imaginative toys with highest safety standards. for 3-years of age and older