A combination of a logic, STEAM principles and a wooden marble run. Features: Learn the basics of coding with this fun Quadrilla marble run tower set! Build the towers and tracks and find the missing blocks to unlock the code! The challenges are endless with this off-screen coding marble run! Includes 20 challenge cards ranging from 'Starter' to 'Expert' Use alongside free Quadrilla App (available for Android & iOS) Mimics the basics of coding as kids find the hidden blocks to unlock the marble run through the right sequence Specifications: Dimensions: H:8.6 x W:53.0 x D:36.3 cm Weight: 3.5 kg Colour: Multi Guarantee:12 Months Model Number: E6028