What if the fixture is the wrong size? Can I return it? May 10, 2019 19:21 Standard fixtures can be returned for exchange or refund if they have been unused. A restocking fee may apply. For more detail about our returns policy click here. Related articles Modelers have building switches by hand for years. Why do we suddenly need an Assembly Fixture to do this? Why are prices in US dollars when Fast Tracks is a Canadian company? What are TwistTies used for? Using the Frog Helper To Build Curved or Straight Turnout Frog Points Building Turnouts Using Fast Tracks Assembly Fixtures.