Suitable for 5 series, 6 series, and Cheetah series models: 50-R1000s, 50-B1300s, 50-R1320s, 50-R1300s, 50-M4000cs, 50-M4200cs, 50-M7200cc, 50-W4320cs, 50-B7000cc, 5018S, 5020S, 5035s, 5049s, 5050cs, 6075cc, 6020s, 6040cs, 6072cc, 6075cc, 6090cc, 7020s, 7025s, 7027cs, 7071cc, 7075cc, 7085cc, 7089cc. High-Quality Materials: Made from high-quality materials for continuous, efficient, and easy-to-use performance. Optimal Shaving Performance: For best results, replace the shaving head every 18 months. Over time, the cutting performance may decline after trimming hundreds of thousands of hairs. Advanced Processing Technology: The replacement head features advanced processing technology that enhances the overall performance of your shaver. Restore Shaver Performance: Replacing the head helps restore your shaver’s original performance and provides a closer shave. Regular replacement keeps your shaver in optimal condition for years. Color: As shown Material: ABS + metal Package Contents: 2 x Shaving accessories Note: Package includes only the items listed above. Other products are not included. Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement error allowed is +/- 1-3 cm.