Special for 2M Red 2M Blue and 2M Silver phono cartridges: 2M Silver will be an upgrade compared to 2M Red due to a special suspension and silver-plated copper wire material. The 2M Blue is an upgrade compared to both 2M Red and 2M Silver thanks to the Nude Elliptical diamond which retrieves information from the groove with a higher accuracy.Interchangeability The 2M 78 replacement stylus is compatible with 2M Mono and 2M 78 cartridges.What's in the BoxStylus 2M 78 Replacement StylusSpecificationsFrequency response 20 Hz - 20 kHzL 3 / - 1 dBTracking ability at 315Hz at recommended tracking force: 70 µmCompliance dynamic lateral: 18 µm/mNStylus type: SphericalStylus tip radius: R 65 µmTracking force range: 1.6-2.0 g (16-20 mN)Tracking force recommended: 1.8 g (18 mN)Tracking angle: 20°Stylus color: Grey