These worked fine when taken off the layout.  There is one O72 curve on the left.  5 O36 on the upper right.  Next step down are all O48, total 11. They do have some ballast/landscaping as well as the rails were colored on some more than others.  Please review the photos.  Sold as shown with no returns.  Check out my feedback, lots of positive feedback over 20 years on eBay!