This goblet is crafted with select woods from around the world (Wenge-cup and Zebra Wood- stem), then glued together and turned on a lathe. It was then bleached to really make the grain in the Wenge pop. Each peice is one of a kind. All wood may change in color over time due to oxidation and will inhance the beauty for years. The colors are natual ( accept for the bleach), no stain is applied.