Feel the need for speed? Get the “GraviTrax Speed Starter-Set” and watch your marbles soar! Trick out your track and race your marbles to the finish faster with the “GraviTrax Speed Starter-Set”! This cool construction set includes all the components of the “GraviTrax Starter-Set” plus an additional Magnetic Cannon, Flip, Loop, Spiral, Tunnels and more. Set up’s a snap with included plans while encouraging creativity and independent play. Once the basics are mastered, simply add more accessories for endless possibilities to experience the power of gravity and educational fun today! An electronic-free, expandable construction set, GraviTrax uses STEM-friendly concepts as young engineers develop critical thinking and problem-solving skills, and have a blast building amazing marble runs! For Ages 8 and up. WARNING: CHOKING HAZARD - Small Parts. Not for children under 3yrs. CHOKING HAZARD -- Toy contains a marble. Not for children under 3 yrs.