Build 4 different things! Get ready for some amazing thrills as you put your constructions skills to the test as you build this awesome roller coaster! When youre finished building, turn off the lights and see your creation glow-in-the-dark! Use the 430+ included parts and pieces (including rods, connectors, glow-in-the dark track and an air propelled coaster car!) to complete your roller coaster!
knex k force build and blast k 20x construction set 165 pieces on other UK sites