Firebird 65BIO Targets are the worlds first completely biodegradable detonating target. They're the same great target as the 50BIO, but with a wider diameter case to make them easier to hit. 65BIO Targets are self-contained, pyrotechnic reactive targets that are legal, safe and easy to transport. Firebird 65BIOs are designed to be used at short, medium and longer ranges with- handguns, rifles, shotguns, archery and high-powered air guns. They can be used as static targets or on a moving trajectory such as a clay pigeon. Small enough to fit in the palm of your hand, our 50mm targets will impress you with their sound, smoke, and flash giving you instant hit recognition (IHR). You wont miss the percussion, flash and smoke indicating that you've hit the mark. Adjust. Features a 65mm dia. x 7mm biodegradable polymer shell, less than 20 grams total weight; a brilliant microsecond flash and white smoke indication; Biodegradable case shatters completely and dissolves over time, leaving you with no clean up.