The NP4 replacement needle is used specifically for certain CD recording units. Made of high-grade ABS plastic composites, it provides thousands of rotations and a generous amount of optimal playing time. Works with Crosley turntables: CR24-003A Music Writer, CR2402A Performer, CR2404A Analog Songwriter, CR2405A Director, CR2406A Director, CR2413A Memory Master II, CR2415A Cannon, CR246 Director, CR249 Keepsake, CR6001A Archiver (MFG up to 05/12), CR6002A Revolution (MFG up to 05/12), CR6004A Oval, CR6012A Audiophile, CR6249A (silver) Keepsake (MFG up to 05/12).