The Yamba Helix 2 adapter set opens up entirely new building worlds for little explorers. With the Helix building system, existing play materials like wooden train tracks or building blocks can be creatively expanded and built upwards. The sturdy lift supports also allow for safely constructing larger structures. All parts are compatible with common wooden train tracks and building blocks, ensuring imaginative building and endless play fun. Ideal for children who love to experiment, construct, and create their own exciting track worlds! Contents: 1 wooden roller Rolli 20, 1 lift column 16, 1 adapter Link-Up 2, 1 adapter bar, 1 crossing cross.