Compatibility: Designed specifically for HO scale model trains, this motor drive rod connector is suitable for enhancing your model train setup with accuracyConstruction: Crafted from quality ABS, these connector are builts to last, ensuring long term durability and reliable performance in your model train projectsDimensions: Design to the 1/87 HO scale, these Motor Drive Rod seamlessly integrate with your existing train models for enhanced functionalityComprehensive Set: The package includes 12 pieces of model coupler connector, providing ample components to support multiple projects or replacements within your collectionVersatile Use: These Train Model Connecting Rod serve as essential accessories for modifying or upgrading electric trains, offering flexibility and creativity Specification: Materials: ABS Size Chart: Outer Diameter 5.51mm/0.22inch Package Includes: 12 1:87 Scale Ho Scale Train Motor Drive Rods Note: 1.This is not infant toy , please take away from children to avoid eating.2.Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.