Photographing very small things can be challenging. The product in this photograph is an abrasive, but to be honest, I don’t know how it is used. I imagine that it’s similar to sand blasting. The largest of the stainless steel balls is about one millimeter in diameter. For comparison, a BB is about 4.5 millimeters in diameter. So these are pretty small. As always, I am interested in your thoughts and comments.