You are looking at one brand new Tandy Leather Sam Browne Small Nickel Plate Button Stud. This item 11310-02 measures 5/16" (7.9 mm) in height and base diameter and 1/4" (6.4 mm) on the diameter of the head. It is easily fastened together with the screwback attachment that is included. There are various other leathercraft kits, stamps, dyes and tools available in our stecksstore. If you are interested in additional quantities, please feel free to contact us. Please feel free to message with any questions. Thank you for looking.