The addition of a dot on the center of a blade on the Big Dot Series has become popular because it is effective.  The center dot is a great way to add color and contrast to you spinner that stands out very well when a spinner is turning in the water.  You will find a large variety of patterns in this category utilizing the center dot with metal finishes, solid paint patterns and metallic paint patterns.  You will also find a number of dot colors available in my lure tape category.  This in a great way to change, add or enhance the center dot pattern.  Try a little contrasting or add UV to your dots quickly and inexpensively with the lure tape option.