One of the great advantages of TT:120 is that the 12mm gauge track correctly scales out as standard (4' 8.5") gauge, as used all over Britain's railway network. The ingenious rail section of PECO code 55 combines strength and durability with a highly realistic appearance – In TT:120 the visible height of the rail correctly represents 113lb flat bottom rail. The flexible sleeper base is detailed with fine wood grain and spikes through British Railways’ BR1 baseplates under the rails, a combination that continues to be widely used on Britain’s railways.
Pecos' Unifrog design provides and isolated metal crossing nose or frog which has a connecting wire attached. The point can be installed as supplied as an Insulfrog or the crossing nose can powered by connecting the attached wire to a switch on the point motor to control polarity, making the point 'Electrofrog'.