K'NEX Typhoon Frenzy Roller Coaster building set with colourful elements encourages your child's motor skills, creativity and logical thinking behaviour. Our educational toy range supports your child in their growth phase and enriches them with knowledge from STEM areas (science, technology, engineering, arts and maths subjects). Easy-to-follow building instructions come along with the K'NEX 19ft roller coaster. Download the exclusive instructions to create an amazing second model, the Tsunami Surge Coaster! This 2-in-1 interactive amusement park ride includes over 640 pieces to enjoy hours of construction experience and building fun. This set is a great birthday or Christmas gift idea for girls and boys. The strictest quality and safety standards were used in testing this toy to ensure that your child has a successful, trouble-free building experience. This K'NEX building set is recommended for kids aged 9 and up