The Kullerbü Extension Set Universal Steep Curve from Haba is a thoughtful addition to the popular marble run that promotes creative play and learning. This set includes a universal steep curve, a column, a base, and two ground connectors, allowing for individual design and expansion of the track. Made from high-quality beech wood and durable plastic, the set offers both stability and longevity. The various parts are designed for easy assembly, making it manageable for children aged 24 months and up. With a total of seven individual pieces, this extension set opens up new possibilities for exciting marble run adventures and stimulates the imagination. The Kullerbü marble run is not just a toy, but also a tool for enhancing motor skills and spatial thinking. The Kullerbü Extension Set Universal Steep Curve is a valuable addition to any Kullerbü collection and ensures endless fun.