These track pieces came from my personal railroad here and have countless hours of track running time with them over the last five years as well as countless engines. They’ve been outdoors in the Pacific Northwest and so they’re more likely to be used outside again hence the discounted price.. I pulled all these pieces up by myself and personally I know that a train engine can run on them again without any problems. They might need to be cleaned or use the sandpaper to them so that they can work with a patina of being outdoors, but there’s nothing wrong with the track pieces. They’re working fine.