This Is A Bulk Amount of O Cork Roadbed Strips from Model Power.
Features: * Standard size fits all O scale tracks. * Very flexible and easy to use. * Excellent sound apsorption! * Insert cork roadbed under your tracks to achieve a realistic looking ballast effect and to reduce the noise from running the trains on bare plywood surfaces. * May be cut for shorter sections on your layout.
...more about the Model Power Cork Roadbed -- Straight Section 36'' Long - O-Scale (25)