Suitable for 40B: CT2S, CT4S, CT2CC, CT4CC, CT5CC, CT6CC. High-Quality Materials: Made from selected high-quality materials for continuous, efficient, and easy-to-use performance. Optimal Shaving Performance: For best results, replace the shaving head every 18 months. After 18 months, the shaver's ability to cut hair may gradually decrease due to wear. Advanced Processing Technology: The replacement head features advanced processing technology that enhances the overall performance and appearance of your shaver. Restore Shaving Performance: Replacing the head helps restore your shaver’s performance, providing a closer and more comfortable shave. Regular replacement ensures long-term optimal condition. Color as shown. Material: Plastic + Metal. Package Contents: 2 x Shaving Accessories. Only the above package content is included; other items are not part of this package. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.