Hardwood finial is made of Birch. 
Smooth and ready to stain or paint.
The peg (tenon) on bottom fits a 3/8" diameter hole.

The length of the turned finial (above the fastening peg)

is 3" high x 1-3/4" wide.
The base diameter above tenon is approximately 1-1/4".

Package of 2 pieces.