These are brass crimps, with a Black, oxidized finish for those instances where you need a black
crimp instead of a metal color. This is a similar color to gunmetal plated findings but the finish will not crack when crimped. Crimp surface is corrugated. 2.3mm x 1.3mm, seamless (of course!) Sold in packages of 0.25 ounces (about 250 crimps).
