The name comes from the splatter of white that appears upon bullet impact, which allows you to immediately spot each shot. These targets are a great value and simple to use both indoors and outdoors. The black and white contrast of these splattering targets is also perfect for reading shot groups. The non-adhesive back allows you to affix to a surface as you wish, add notes and then easily save the targets for future reference. Multiple target facings on one sheet makes for more shooting time and less target changing time. Four 5.5" targets on one convenient sheet with a non-adhesive backing that allows you to save target sheets for future reference. Each DIRTY BIRD Target comes with an aiming point for open or scoped sights.