With GraviTrax Junior, building and playing fun is always on track! This creative, expandable system is especially designed for younger children as it challenges them to use their imagination to build their own marble runs! STEM-friendly concepts build critical thinking and problem-solving skills. Completely open-ended, this XXL Starter-Set contains everything needed to build a variety of tracks. Expansion sets are easily added for even bigger fun! With many parts made of wood bioplastic, you can feel good about giving your favorite child a sustainable toy that will provide years of educational play!

Comes complete with instructions, 10 baseplates, 6 marbles, 100 height tiles, 2 bridges, 4 straights, 4 slopes, 14 big curves, 4 small curves, 1 starter 2-part, 1 finish, 1 hammer, 1 seesaw, 16 3D decorative elements, 4 cardboard animals, 8 base stones, 8 decoration caps.

The Ultimate is the largest Quadrilla set. Two spiraling funnels, 12 curved rails, and 10 power-boosting accelerators inspire builders to design the ultimate marble run. STEM

Add the dimension of sound to your Quadrilla runs with a xylophone rail that plays a musical scale as marbles race over it.

Keep your Quadrilla marbles close at hand with these precision-crafted marble catcher trays.

Each set is made up of hollow stacking cubes and a variety of perfectly flat tracks. The paths cut out of each track widen almost imperceptibly from one end to the other, creating an invisible slope that propels the marbles forward.

Watching them go is like magic in slow-mo!

Start with the 43-piece Starter set for an ideal introduction with three guided builds. Explore more with the 73-piece Builder set with four guided builds. Get the fullest experience with the 124-piece Deluxe set with four even bigger guided builds.

Or, collect them all, combine them, and turn your Trestle Tracks into a Trestle Metropolis!

Get creative and discover the wonders of simple engineering with Trestle Tracks.

Trestle Tracks

• Unique marble run with marbles propelled by widening tracks
• Encourages spatial reasoning, creativity, engineering skills, problem-solving
• Tracks suspended by hollow stacking cubes
• Builder and Deluxe sets – features base grid for added stability
• Follow guided builds or invent your own structures!
• Choose either the Starter Set, Builder Set, or Deluxe Set
• Starter set includes 1 catcher, 1 topper, 30 risers, 5 stainless steel marbles, 6 unique tracks
• Builder set includes 1 catcher, 1 topper, 55 risers, 5 stainless steel marbles, 10 unique tracks, base grid
• Deluxe set includes 2 catchers, 2 toppers, 90 risers, 10 stainless steel marbles, 18 unique tracks, 2 base grids
• All sets are fully compatible with each other – Collect them all!
• High-quality materials and construction – Lasting durability

Each set is made up of hollow stacking cubes and a variety of perfectly flat tracks. The paths cut out of each track widen almost imperceptibly from one end to the other, creating an invisible slope that propels the marbles forward.

Watching them go is like magic in slow-mo!

Start with the 43-piece Starter set for an ideal introduction with three guided builds. Explore more with the 73-piece Builder set with four guided builds. Get the fullest experience with the 124-piece Deluxe set with four even bigger guided builds.

Or, collect them all, combine them, and turn your Trestle Tracks into a Trestle Metropolis!

Get creative and discover the wonders of simple engineering with Trestle Tracks.

Trestle Tracks

• Unique marble run with marbles propelled by widening tracks
• Encourages spatial reasoning, creativity, engineering skills, problem-solving
• Tracks suspended by hollow stacking cubes
• Builder and Deluxe sets – features base grid for added stability
• Follow guided builds or invent your own structures!
• Choose either the Starter Set, Builder Set, or Deluxe Set
• Starter set includes 1 catcher, 1 topper, 30 risers, 5 stainless steel marbles, 6 unique tracks
• Builder set includes 1 catcher, 1 topper, 55 risers, 5 stainless steel marbles, 10 unique tracks, base grid
• Deluxe set includes 2 catchers, 2 toppers, 90 risers, 10 stainless steel marbles, 18 unique tracks, 2 base grids
• All sets are fully compatible with each other – Collect them all!
• High-quality materials and construction – Lasting durability

Each set is made up of hollow stacking cubes and a variety of perfectly flat tracks. The paths cut out of each track widen almost imperceptibly from one end to the other, creating an invisible slope that propels the marbles forward.

Watching them go is like magic in slow-mo!

Start with the 43-piece Starter set for an ideal introduction with three guided builds. Explore more with the 73-piece Builder set with four guided builds. Get the fullest experience with the 124-piece Deluxe set with four even bigger guided builds.

Or, collect them all, combine them, and turn your Trestle Tracks into a Trestle Metropolis!

Get creative and discover the wonders of simple engineering with Trestle Tracks.

Trestle Tracks

• Unique marble run with marbles propelled by widening tracks
• Encourages spatial reasoning, creativity, engineering skills, problem-solving
• Tracks suspended by hollow stacking cubes
• Builder and Deluxe sets – features base grid for added stability
• Follow guided builds or invent your own structures!
• Choose either the Starter Set, Builder Set, or Deluxe Set
• Starter set includes 1 catcher, 1 topper, 30 risers, 5 stainless steel marbles, 6 unique tracks
• Builder set includes 1 catcher, 1 topper, 55 risers, 5 stainless steel marbles, 10 unique tracks, base grid
• Deluxe set includes 2 catchers, 2 toppers, 90 risers, 10 stainless steel marbles, 18 unique tracks, 2 base grids
• All sets are fully compatible with each other – Collect them all!
• High-quality materials and construction – Lasting durability

Flip, turn, and arrange the panels to create an endless variety of raceway twists and turns. Then, place the four marbles in the starting position.

Three, two, one, GO!! – With a press of the lever, they’re all launched simultaneously, powered solely by the force of gravity and the weight of their own mass.

Which one will finish first??

Classic physics becomes a raceway adventure with the riveting game of Downhill Derby!

Downhill Derby

• Game of racing marbles down a rearrangeable track
• Encourages spatial reasoning, cause-and-effect learning, experimentation, creativity
• Track features 6 panels
• 4 middle panels can be flipped, turned, and rearranged to create unique track configurations
• Marbles launch simultaneously with the press of a lever
• Includes track with adjustable height, 4 rearrangeable panels, 8 marbles in 4 colors
• High-quality materials and construction – Lasting durability