7 mm scale
7 mm scale, also known as British 0 scale is a model railway scale of 1:43.5. The scale is thus different from American 0 scale and European 0 scale For standard gauge railways, 32mm gauge, or 0 gauge is most commonly used. ScaleSeven standard however specifies 33 mm gauge, which is closer to scale. For narrow gauge modelling, 16.5 mm gauge
