The same top-quality components that other top sellers sell, but at a better price! The perfect aftermarket replacement for the following drivers: 127103, 127103A, 127013B, K-63, K-71, K-72, K-74, K-75, K-76, K-79, K-80, K-81, K-82, K-83, K-84, K-85, K-88, K-90, KG-1, KG-2, KG-2.5, KG-3, KG-3.5, KG-4, KG-4.5, KG-5, KG-5.5, CF-1, Chorus I, Hershey II, Forte I, Forte II and others that match the measurements above