Allstar 5/16 inch x 0.5 inch Long Steel Medium Oval Head Button Fastener (Pack of 10) measure 5/16 inches x .500 inches long and are constructed from quality steel. They are sold as one set of 10 pieces. Allstar also offers additional quick turn fasteners in a wide-array of styles and sizes for every custom need imaginable It is sold separately. It is backed by a 90-day limited factory warranty.