Small button plug, miniature button plug, 3/8" button plug set of 12
A set of 12 small button plugs. They are made from birch. Use them to cover screw holes or paint them to look like something. They measure about 1/2" across the top, 3/8" across the bottom, and 3/8" tall. They would fill a 3/8" screw hole.
The last photograph shows the 5 size plugs in my shop. This is the 2nd from the left.