The polarity (or train direction) of the rails is shown on the product. Add to Favourites.
Gaugemaster GM52 Multi Scale Track Tester
Brand New - Gaugemaster GM52 Multi Scale Track Tester - FREEPOST
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GAUGEMASTER Multi Scale Hornby Track Tester GM52
GM52 Gaugemaster Multi Scale Track Tester N, TT OO EM
