Cuboro SUB – Expansion set for underground tunnels in your marble run

Discover the depth of your marble run with the Cuboro SUB set!

The Cuboro SUB expansion set allows you to integrate fascinating underground tunnels into your marble run. The included special building blocks open up new dimensions of construction and promote creativity and spatial thinking.

Consists of 12 special building blocks and 3 glass marbles.

Crafted from high-quality, natural Swiss beechwood, the set offers long-lasting and sustainable playability. It's fully compatible with all Cuboro base sets and other expansion sets, allowing you to flexibly expand your existing marble run.

Cuboro Trick has been awarded the "spiel gut" (play well) label and guarantees educational fun for the whole family.

• Building blocks: standardized cube shape with 5 x 5 x 5 cm
• Overall dimensions: can be individually designed depending on the construction
• Weight: approx. 2.5 kg (complete set)

The set is compact yet expandable. It fits on any gaming table and can be easily stored after use.

Manufactured in Switzerland with the highest precision

• Up to 30 work steps per element
• Gently ground, rounded edges for maximum safety
• Glass marbles made to Japanese quality standards, optimally matched to the track layout

This marble run set represents excellent craftsmanship where every detail counts. For parents who don't compromise.

• Promotes logical thinking and spatial imagination
• Supports fine motor skills and creative problem solving
• Ideal for Montessori-oriented learning
• Suitable for individual play or group activities (at home, daycare, school)

This marble run is more than just a toy – it is a tool for the holistic promotion of child development.