Ages 8 and up.
.Marble run builders can see the physics of projectile motion, elastic collision, and trajectory in action as they position the trampoline so that marbles fly, catapult up to a higher track, or bounce downward. Trampoline Expansion Pack For The Any Surface Marble Roller Coaster This is the expansion pack for The Any Surface Marble Roller Coaster that adds an acrobatic element to existing courses by sending marbles bouncing off a trampoline. The set includes 12 building pieces that form a repositionable trampoline and two marbles.