Great for use with most firearms, the Birchwood Casey® Shoot-N-C 5.5" Bull's-Eye Targets 60-Pack feature a fluorescent background color that is great for use in low-light conditions. When hit, the targets' black coating flakes off approximately 2x the size of the bullet hole, leaving a bright yellow ring around each shot that is visible to the naked eye from long distances. For indoor and outdoor use.