Seiwa SEIWA Professional leathercraft tools, a set of 3-prong diamond chisels, 3mm and 4mm widths. - Model: 3-prong diamond chisel, 3mm width - Model: 3-prong diamond chisel, 4mm width - Application: For leathercraft Professional tools Thank you for viewing. Although it is new and unused, there may be some creasing on the packaging due to amateur storage. It may take 1-2 days to respond after purchase. Thank you for your understanding.