This is treated Birch burl imported from Russia. This will be used as fret board inlays on new guitars. Just got it today so have to slice, cut to shape and buff up ready for use on next custom guitar which with have a ash body and stained green with white maple neck with the green and white burl as neck inlays. The white and black burl will be used on a spruce top. Think this will look great when done.