The RCBS Primer Catcher keeps spent primers off the floor when ejected from fired cases. A plastic clip holds the Primer Catcher snug and secure to press, yet it's easily removed for emptying. It's compatible with the Rock Chucker, JR and Reloader Special presses only. FeaturesKeeps spent primers off the floor when ejected from fired casesPlastic clip holds Primer Catcher snug and secure to pressCompatible with Rock ChuckerA(R) JR and Reloader Special presses only