The K'NEX Typhoon Frenzy Roller Coaster Building Set allows users to construct a 19-foot-long roller coaster using over 640 pieces. This engaging set includes a motorized power system and a silver coaster car, offering an exciting building experience for both kids and adults.

Key Features:

• Build a 19-foot-long roller coaster with over 640 pieces
• Includes rods, connectors, motorized power, and a silver coaster car
• Features a 2-in-1 model with exclusive instructions for the Tsunami Surge Coaster
• Enhances fine motor skills, logical thinking, and problem-solving
• Great gift for birthdays or holidays, encouraging creative design play