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Unique Design: Quadrilla Rails are designed to be level, and all the speed is generated by the marbles dropping through the brightly colored connector blocks, each of which sports a different design feature. Red, ramp-like "accelerators" (Poorly named--these should be called "Shock Absorbers" or something like that) help control the speed of marbles as they drop out of blocks and back onto the rails, eliminating derailments with astonishing consistency! Ease of construction, Quality & Precision set Quadrilla apart as the new generation of wooden marble runs. Get more design ideas by paying a visit to quadrilla.com! |
Quadrilla Expansion Set 4 We set up a Quadrilla run in our activity room as soon as they came in, and have been sneaking in to play ever since. Quadrilla Expansion Set 4 lets you expand the empire and the possibilities for your marble runs with these vibrant connecting blocks. 6 unique & special purpose Quadrilla blocks to add to the excitement of building your marble runs. List Price: $12.99 |
More Quadrilla Sets! •Quadrilla Basic Set Extension Kit New! Quadrilla Add-Ons! Quadrilla Switch Set Quadrilla Expansion Set 3 More Blocks & Marbles! |
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