K'NEX Roller Coaster Building Set with Instructions

This vintage K'NEX Roller Coaster building set includes all the essential parts to construct a detailed roller coaster model. Features: - Multiple bags of K'NEX pieces in orange, yellow, and blue colors - Original instruction manual for step-by-step assembly - Flexible orange tubing for track design The set is in very good condition with all pieces organized and instruction manual intact. Ideal for collectors or enthusiasts of classic building toys and model engineering. Perfect for creative play or display. Please review all photos for condition and completeness.