Wenge Pen Blanks. These gorgeous pen blanks have been kiln dried and originate from West Africa. These pen blanks feature a zig zag pattern, and finish with a high polish. Pen blank size is 3/4″ x 3/4″ x 5.Please note that the price listed is per pen blank, and you are not guaranteed to get the pen blanks in the image. Blank sizes may be +- 1/8″ on any side.