The AGM Reservoir Piston Tool provides a quick and accurate method of measuring and setting shock reservoir piston depth during service. In addition, the AGM Reservoir Piston Tool can be used to monitor\/prevent possible piston movement while bleeding air from your shock.\n\nMade in the U.S.A. from high-grade steel, it's heavy duty construction ensures proper function and long life. The AGM Reservoir Piston Tool works on all major brand name shock reservoirs and lengths.\n\nDetails:\n\n\n - Provides a quick and accurate method of measuring and setting shock reservoir piston depth during service\n\n - Can be used to monitor\/prevent possible piston movement while bleeding air from your shock\n\n - Made in the U.S.A.\n\n - High-grade steel\n\n - Heavy duty construction ensures proper function and long life\n\n - Works on all major brand name shock reservoirs and lengths\n\n - Comes With 1\/4 And 5\/16 Threaded Ends\n\n - Struggle Free Removal Of Piston\n\n - Check\/Set Piston Depth With Ease\n\n - Prevent Piston Movement While Bleeding Shock