SpaceRail Level 8 Game, 40000mm Marble roller coaster track with a helix elevator to carry SpaceRail marble to the top Includes multiple different tracks for the marbles to travel, multiple consecutive loops, drop-through steps, figure-8 curves, and vertical corkscrew drop Estimated build time: 10-12 hours Contains: 40,000 mm track line, Two steel .5 in marbles, Screw Conveyor Elevator, Arms and holders to place SpaceRail track, Freestanding base to fit entire marble run, and English instruction manual Recommended for ages 15 and up