Splatter of white appears upon bullet impact to immediately spot each shot. Simple-to-use indoors & outdoors. Black & white contrast perfect for reading shot groups. Non-adhesive back affixes to surface. 3'' targets: Room between targets to write notes from various ammunition multiple target facings to test different target loads. 5-1/2'' targets: Great for longer range & handguns. 8'' & 12'' targets: With aiming point for open or scoped sights & tie breaking ring in center.