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. Shaving Performance: For optimal shaving results, we recommend replacing the shaving head every 18 months. After 18 months, the cutting performance may decline due to natural wear. Processing Technology: The replacement head features advanced processing technology that matches the texture of your shaver. Performance: Replacing the head helps maintain your shaver's performance and provides a better shaving experience. Regular replacement ensures long-term durability and functionality. Color: As shown Material: ABS + metal Package Contents: 1 x Shaving accessory Note: The package includes only the items listed above. Other products are not included. Lighting and monitor settings may cause slight color variations between the image and the actual item. Measurement may vary by up to +/- 1-3 cm.