This pin assortment has 405 pieces and 18 sizes, is made of steel, and has a bright (uncoated) finish. Plus, it includes 25 3/16x1, 25 3/16x1½, 25 3/16x1¼, 25 3/16x½, 25 3/16x¾, 25 3/16x7/8, 25 5/32x1, 25 5/32x1½, 25 5/32x1¼, 25 5/32x½, 25 5/32x¾, 25 5/32x⅝, 25 5/32x7/8, 25 7/32x1, 25 7/32x1½ and more. It meets the standards for ANSI, DIN, Military Specifications and ANSI, DIN, Military Specifications material quality.