Springfield Leather Company Solid Brass Nickel Plate 5/16" Grommets 100 Pack 5/16" Nickel Plate Grommets Quanity: 100 pack Size 5/16" Used to prevent holes from tearing in leather, canvas, etc....Also great for drawstring handbags and such For a truly professional look, you can use the Osborne Grommet Setter (sold seperately)