Bachmann"s exclusive E-Z Track system makes set-up quick, easy and fun. Nickel Silver Rail. Gray Roadbed. E-Z Track System --Snaps Together, Stays Together on Floors, Tables and Carpets.Features include: ?Nickel Silver rail?Gray roadbed?E-Z Track System --Snaps Together, Stays Together on Floors, Tables and Carpets?No nails, screws, or special tools needed?Modeled from AAR track engineering dimensions