The 15" Spacing C9 Empty Socket Line allows you to make the most of your decorating. 1000' C9 Empty Socket Line can give you the ability to mix and match the colors that will make the most of your décor.  Splice the spool of sockets into your own customized lengths to custom fit them to any area or space to make decorating even easier and more fun. Seal the ends by utilizing Vampire Plugs and you will be ready to go!