This item consists of ten (10) pieces of  Northeastern Scale Lumber Channel shaped strip wood that is nominally sized:

3/8" X  22" long.

The 3/8" measurement is the overall width of the piece. 

I say nominally because it is real wood and can shrink & expand depending on the moisture content of the air.

These are a discontinued size and some are seconds, and look weathered because of the coloring variations. These are useful for ship building, miniature furniture making, dollhouse buildings and large scale passenger cars. I'm sure you can come up with some other things! This will certainly help your scratch-building projects.

Check the pictures.