Abalone effects with buckeye burl wood in pen blanks!! When light refracts on it, the blue/green/red highlights pop out like an opal or mother of pearl. The addition of black streaks adds some interest to the blanks making it look like abalone shell with vibrant colors. The blanks measure approximately 3/4″ x 3/4″ x 5″ Check out the video of them below. Prices are per blank.