This is the (bulk of 6) Flex Track Code 250 36'' Long in G Scale by Peco.
Fully assembled and ready for use, Peco track features Code 200 (for use with Marklin and other #1 Gauge systems) or Code 250 nickel silver rail and simulated wooden ties. The ties are molded in plastic and combine with the rails to create a tough track system, for use indoors or out, that can support the weight of the sometimes heavy engines used in the larger scales.
Suitable for use with most Large Scale trains. Nickel silver rail sections measure 36" long.