These are Standard 19 Radius Curved E-Z Track Sections by BachmannÂÂ.Suitable for Ages 8 & Older.Premium-quality nickel silver track with molded gray roadbed.Assembles quickly without nails, screws, or special tools.Snaps-together and stays together on floors, tables and carpets.Scale: N 1:160COMMENTS: Keep product safely away from children age 3 and younger.