Stainless steel, spring wire iaw astm a313 type 302 class 1 bright finish, nha 1183as802 battery firing device used on dispener and mines cbu-78/b, cbu-8 (t-4)/b, cbu-89(t-2) /b, cbu-89/b, cbu-78a/b, item is 2.250 in. Lg., 0.580 in. W., 0.500 in. H., wt. 0.03125 lbs