This is the Telephone Poles by Lionel® For ages 8 years and up FEATURES: Add realistic details to your layout with these high quality plastic telephone poles Includes a set of 10 Traditional O gauge INCLUDES: (1) pack of 10 Telephone poles SPECS: Height: 7" (177.8 mm) bl 7/31/08 COMMENTS: (Any special application or something it will not work with?)