Allstar Steel -4 AN Male to 3/16 Inverted Flare Female Brake Line Adapter Fitting (Pack of 20) is made from quality steel. It adapts a -4an male to 3/16 inverted flare female and has a straight style fitting. It is sold in one set of 20 pieces. Allstar also carries a large and wide selection of quality fittings for most automotive plumbing needs. It is backed by a 90-day limited factory warranty.