Complete set. Like new condition. Never built but package opened and my son started a few steps but didn't get far. We have double checked every single piece is there. K'NEX Dragon's Revenge Thrill Roller Coaster Motorized Building Set * rare The K’NEX Dragon's Revenge Roller Coaster Building Set lets your creative builder make a real working roller coaster with a burning castle and motorized 'flying' dragon! Perfect for builders ages 7 and up, K’NEX supports key areas of a child’s developmental growth, like fine motor skills, manual dexterity, and spatial awareness, putting them on a path towards greater understanding of STEM subjects.
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