Review on Wooden Roller Coaster Marble Run Puzzle - ROKR 3D Mechanical Model For Self-Crafting, Decoration, And Educational Gifting by Ronald Ingram
Poor tolerances compared to other versions
This is the 3rd of these ROKR "coasters" I've purchased, and the other 2 models operate very well. This one was much more difficult to assemble and is apparently VERY sensitive if you don't get the pieces assembled with laser-like precision. Marbles continually fall out of the coaster and get hung up in multiple places. Suggest you purchase different model(s).
- The Wooden Roller Coaster Marble Run Puzzle is a unique and innovative 3D mechanical model that challenges your creativity and problem-solving skills
- Assembly could involve small and intricate pieces that are difficult to handle
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