Quadrilla Super Spiral Marble Run 11 years creating an invisible slope that

creating an invisible slope that propels the marbles forward

a chain pulls the train to the top of the hill where gravity takes over from there

a squirrel

like seashell beads and gemstones

(NOTE: some additional household items required)

Quadrilla Super Spiral Marble Run 11 years creating an invisible slope that101 PIECE WOODEN MARBLE RUN: Features see saws, spiral twists, and the knob and button on the distributor block can be used to change marble direction. Use the building ideas from the included instructions or your imagination and engineering vision to build different marble roller coaster constructions with this Vertigo wooden building set. Ages 4 and up