Dimensions
Height 14cm, diameter at widest point 9.5cm, opening diameter 6.5cm.
For reference please compare to the wooden egg in the photo, which is the size of a standard hen’s egg.
Arranging Tips
This vase would be lovely with a bunch of medium stems. It’s a bit tight to fit my hand inside but you could use a custom chicken wire insert or drop in a small Kenzan (see this video for method) if you want more structure.
From all sides:

