The Ravensburger GraviTrax Kinetic Blast Action Set is an ultimate marble run building system designed for adventurous kids who love challenges and imaginative play. This exclusive Costco set delivers a one-of-a-kind marble run experience that brings STEM concepts to life through interactive play.

The set includes 157 pieces total, featuring high-energy action elements including FlexTubes, light pillars, a vertical cannon, scoop, and transfer components. It comes with 40 height tiles, 12 half-height tiles, 21 curve tiles, 3 junction tiles, 3 light bases, 12 full light height tiles, and 6 half light height tiles. The set also includes special tiles like three-way merge, vortex, landing, and switches. Nine marbles are included (6 silver, 1 red, 1 green, 1 blue).

Players can blast marbles through tracks using thrilling action elements, explore physics in motion, and unleash creativity like never before. The set is fully compatible with all other GraviTrax sets for limitless building possibilities. Whether building a first run or upgrading an existing track, the Kinetic Blast Set offers hours of screen-free entertainment and educational fun. Recommended for ages 8 and up. Package dimensions are 13.3 inches wide by 4.3 inches deep by 13.3 inches high, weighing 4.3 pounds.