Let your children be introduced to endless building possibilities with the K'NEX Rocket Car Building Set! This building set from K'NEX comes with 74 different rod and connector pieces, which can be assembled into 3D configurations. Kids can start with a rocket car to learn how K'NEX parts click together and then move on to the creations of their dreams. Easy-to-follow building instructions come along with the K'NEX Rocket Car Building Set. Unleash your kids' creativity as they make their own designs for open-ended fun!