Bornelund Quadrilla Twist & Rail Set for ages 4 and up QDE6009AB05

[Infinite combinations] This is a course set for rolling marbles, made by combining blocks and rails. Quadrilla, which contains hidden physical theories such as gravity and friction, is a slope toy that is full of charm that will captivate not only children but also adults. [Marble rolling that you can think about naturally] Quadrilla may seem like a simple repetitive game, but there are many laws that will keep you hooked during the game! By repeating trial and error, you can intuitively learn physical theories such as structure, acceleration, and friction. [Product Details] [Target age]: 4 years old and up [Size]: Height 34 x Width 53.5 x Depth 13.5 cm [Weight]: 4.8 kg [Materials]: Polypropylene, wood, glass [Quadrilla's Points] ① Seven types of blocks that create unpredictable movements ② Rails that change the acceleration of the marbles depending on the shape ③ Spiral rails that change the speed of the marbles [Set Contents] 24 blocks (8 types), 3 spiral rails, 3 straight rails (long), 4 straight rails (short), 1 seesaw part, 48 supplementary parts (5 types), 50 marbles (in a bag) *The design of the package may differ from the actual product. The pieces will not change.