This variety pack contains a great range of domestic & exotic wood species. They are typically 5" x 3/4" x 3/4", +/- 1/8". Quality may vary and a few may have a minor bow or rough corner edge, but these are all usable for pens. Pen blanks are not labeled by species to keep your cost low. Blanks measure 3/4" but may vary by approximately 1/8" +/-. These pen blanks are good quality, dry and ready to turn into beautiful pens!