These are Raised Star conchos, that feature post and screw backs.. they have an antique silver finish and nice detail on them.They measure 3/4" in diameter. They come with 1/4" screws, but I can add longer screws too, if desired. Perfect upgrade for your horse tack, dog collars, belts, clothing, and more! They are sturdy, well made conchos. New conchos from Weaver Leather..Shipping to the USA is $4.99 via USPS First Class Mail with a tracking number. Thanks for taking the time to view my listing, and feel free to ask questions!