This wood came from an old tree stump on our property in Florence. Birdseye maple which had a lot of insect activity. The insect activity left interesting tracks as well as brilliant pink streaks throughout. Almost all of this wood does have some tracks in it, so may need to be filled with epoxy or other filler. This wood is beautiful and very unique. Pen blanks are cut to approximately 5" long x 3/4" x 3/4".