With the 45-piece seesaw extension, young builders can discover how the weight of the ball causes the two included seesaws to swing up and down. The ball rolls up the seesaw, and when it reaches the middle, the seesaw tips over due to the weight of the ball, sending the ball racing down the track with added speed.

100% compatible with building blocks from other manufacturers: All Hubelino products fit perfectly with blocks from other well-known brands, thereby optimally complementing the existing collection of building blocks.

Made in Germany for excellent product quality: All Hubelino products are manufactured exclusively in Germany under the highest quality standards.

Learning through play with STEM building sets: Hubelino products prioritize a balanced relationship between fun and educational value. Therefore, a learning aspect is always at the forefront during the development of new products, which is enhanced by clever design to create toys with educational benefits.

The 45-piece seesaw extension provides great enjoyment right from the construction phase, as its use must be well thought out, especially suited for building larger tracks. When the ball rolls, the seesaw offers a fantastic sight for observers: the ball rolls up the seesaw until the weight shifts the seesaw's center of gravity, causing the ball to swoosh down with extra momentum.

With the modular and compatible marble run, where nothing wobbles or slips, spatial awareness and basic physical principles are conveyed. Whether with or without building instructions, the colorful setup trains the ability to follow sequences, stimulates working memory, and develops analytical thinking skills.