Build, experiment, and discover with the 70-piece Marble Run Set from Thames & Kosmos.
Marble runs have long captivated both children and adults. From large-scale installations that guide marbles through elaborate courses to compact tabletop versions, they combine motion, creativity, and problem-solving in a highly engaging format. As children test different configurations, marble runs introduce foundational STEM principles such as gravity, momentum, and cause and effect/
The Thames & Kosmos kit includes 60 colourful, durable track pieces designed to interlock securely, making it easy to construct stable, multi-level runs. The set also comes with ten glass marbles, allowing builders to immediately test their designs. Tracks can be assembled into a wide range of layouts, from straightforward descents to more complex structures incorporating elevation changes and directional shifts.
A variety of interactive elements adds complexity to each build. The real excitement begins as marbles leap, flip, and spin through an array of wild obstacles. Features such as an air jump slide, catcher, 360-degree flip, multi-collision track, bumper steps, course changer, and spinners introduce unpredictable motion and variation. Each configuration produces different outcomes, encouraging repeated experimentation.
Beyond play, the set functions as a practical introduction to physics. As kids build and refine their designs, they encounter concepts such as force, motion, energy transfer, friction, acceleration, and collisions. Adjusting layouts to improve performance reinforces iterative problem-solving and basic engineering thinking.
An eight-page illustrated manual provides step-by-step builds along with guided experiments, while a storage bag keeps components organized between sessions. Builders can also time marble runs to compare performance across different designs.
Designed for ages 6 and up, the Marble Run Essential 70-Piece Set is priced at $39.95 USD and is available for pre-order through Thames & Kosmos. Look for it to ship by June 2026.
