Hubelino 420480 Basic Building Box Marble Run, Compatible with Popular Building Block System, 123 pieces, for Ages 4 and Up, (Made in Germany)The 123 piece Basic Building Box is ideal for exploring what the Hubelino marble run has to offer. This set includes everything important: two baseplates, lots of run elements, building blocks, and of course marbles. Our instruction booklet with various marble run designs can be used for simple inspiration or as a sample. The set comes in a solid cardboard carrying case. 100% compatible with building blocks from other manufacturers: All Hubelino