Tunnel Junction 2-Pack
Build higher, steeper, and more challenging MountainBlox courses.
The Tunnel Junction 2-Pack gives you a versatile foundation for creating bigger climbs and dramatic changes in elevation. Stack other Blox on top of each Tunnel Junction to raise your course, or stack Tunnel Junctions together to reach even greater heights.
Each Tunnel Junction also has three entrances, adding more route choices beneath the elevated terrain. With two Tunnel Junctions, you can create taller peaks, longer climbs, and more complex courses that challenge drivers from every direction.
Tunnel Junctions fit underneath existing Blox or other Tunnel Junctions and function as both tunnels and risers.
Includes two Tunnel Junctions.
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Tunnel Junction 2-Pack
Modular. Portable. Realistic.
MountainBlox is modular, portable, and remarkably realistic. Lightweight and easy to transport, it brings the look and feel of true outdoor terrain into any space. Build a compact course in your basement, move it upstairs for an evening of living-room crawling, or pack it up for a meetup with friends. When you connect sets together, the adventure only grows.
Every Blox includes a convenient name tag on the underside, so you’ll always know which set is yours. With MountainBlox, you get professional-level crawling challenges without the hassle of permanent builds or unrealistic obstacles.
More than just terrain, MountainBlox is about connection - sharing the crawl, building bigger together, and strengthening the RC community. From living rooms to local meetups, MountainBlox creates opportunities for crawlers everywhere to come together, compete, and collaborate.
MountainBlox – The Terrain That Connects Us.
FAQ section
You asked, we answered.
Do you offer free shipping?
Shipping will be calculated at the Checkout page for all MountainBlox kits/sets.
What’s your return policy?
You may return unused items in original packaging within 30 days for a full refund. Contact us at support@mountainblox.com to start a return.
Do I need any tools to build a course?
Nope. MountainBlox is tool-free and snap-together. You can build a layout in minutes.
What RC crawlers are compatible with MountainBlox?
MountainBlox is designed for 1/24 and 1/18 scale RC crawlers. These are commonly referred to as “mini crawlers. Our current products are not sized for 1/10 scale crawlers.