Ravensburger GraviTrax PRO Vertical Expansion Set – Advanced Marble Run STEM Toy

Take your marble run higher with GraviTrax PRO Vertical Expansion

Push the limits of your GraviTrax system with the Vertical Expansion set. This add-on brings height and drama to your tracks, featuring 33 pieces to build taller towers, dramatic twists, and suspended stunts. When combined with the GraviTrax Pro Starter Set or any Starter Set, you can extend a simple course into a multi-tier spectacle that challenges your imagination and curiosity.

Designed as an electronic-free, open-ended play system, GraviTrax uses gravity, magnetism, and kinetics to spark curiosity and problem-solving. Each build invites you to test ideas, observe results, and iterate—without any batteries or pre-programmed paths.

The kit comes ready to use right away with instructions, eight pillars, four tunnel pillars, four walls (two long and two medium), and sixteen balconies. The durable pieces are built to withstand enthusiastic testing by kids and adults alike, making it a go-to choice for active, hands-on play.

What makes GraviTrax PRO stand out

• Open-ended creativity that rewards experimentation and planning
• Educational, STEM-friendly concepts that support critical thinking and problem solving
• Showpiece setups that invite longer play sessions and ongoing tinkering

Why it shines as a starter or expansion:

• Compatibility across all GraviTrax systems lets you extend playtime with confidence
• Builds tall structures, fast tracks, and tricked-out courses to match your ideas
• Offers a tactile, sensory experience as marbles roll, collide, and race through the course

Tips for better builds

Start with a stable base, test one change at a time, and observe how height affects speed and precision. Use balconies to create bendy sections, and experiment with different wall placements to steer marbles along new routes.

Hands-on play supports concentration, spatial reasoning, and project planning as you design and revise tracks. The set is designed for repeated use, so you can revisit favorite ideas or try new ones as your skills grow. GraviTrax PRO also makes a thoughtful gift for curious kids and adults who love building, exploring, and tangible physics-inspired play—no batteries required.