The white building block set from Hubelino contains 120 blocks in various sizes, including the popular 1x2 blocks, providing the necessary stability for any marble run construction. The blocks are manufactured exclusively in Germany and are 100% compatible with common building block systems from other manufacturers. For daring marble run constructions, a stable foundation is essential. The 120-piece building block set expands the marble run and construction block range for young builders who aim high. The white blocks offer the ideal contrast to the colorful track elements and marbles of the Hubelino marble run, helping to quickly and clearly distinguish the construction blocks from the track elements. This thoughtful color concept also ensures better orientation and structure for young builders, both during construction and cleanup. All components of the 120-piece building block set are compatible with standard blocks from other manufacturers and can be creatively combined with existing blocks and themed worlds.