Here is a gorgeous piece of driftwood covered in Cladophora aegagrophila also known to most people as Marimo Ball or Moss Ball.
The driftwood in the picture is not the exact piece you will receive, but it will be just as good if not better.
The driftwood comes in small, medium, and large.
Small size is approx. 4" to 6" long and 1.5" to 2" wide.
Medium size is approx. 8+" long and 2" wide.
Large is 11+" long by 2+" wide.