Master engraver William Laskin's legendary filler stick accents delicate lines on shell and pearl inlay (works on metal, too). Years ago, Laskin created this special blend for his own use, and it's been unavailable to the public. Now he's created another batch, and we've managed to purchase enough for our customers.
Simply rub it in and wipe off the excess. It's easier to use than inks, and doesn't seep into the surrounding wood (with inks you have to sand off the residual stains). Adheres to even the shallowest hairline.