These NOS, or new old stock hard wood 9″ long insulator pins have a mounting base O.D. of 1-3/8″. These pins will have varying amounts of wood discoloration and dirt. They were found on a shelf in a barn and were exposed to the elements. They do not have any rot. They were never mounted in a cross arm. There is no nail hole in the pins, that was required to secure them in the cross arm mounting process. USPS shipping.