These Fish Paper rolls are easier to install with an adhesive backing that allows faster application. Good dielectric insulating properties as required in all Telecommunication Power Installations. These rolls are 5″ wide & 50′ long with the adhesive backing for even easier installation. The fish paper is 10/1000″ thick or 10mil thick. Our Fish Paper is never joined and are all continuous rolls. We are phasing out teh 4.5″ x 50ft and this size the 5″ x 50 will be available then.