Z Gauge Code 60 - Small Scale Flexible Track
With a gauge of just 6.5mm and a model scale of 1.5mm/1ft, this is currently the smallest practical size for building a working model railway. If you want to model big landscapes where the trains are dwarfed by the scenery and yet keep it to a manageable size, Z gauge could be the answer.
Technical Specification:
    Length: 610mm