Suitable for 2000 series models: 2615, 2675, 2775, 2776, 2778, 2864, 2865, 2866, 2874, 2876, 2878, 5732, 5733, 5734, Z20, Z30, Z40, Z50, Z60, and CruZer series models: CruZer3, CruZer4, CruZer5. 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. Over time, the shaver may cut over 6 million hairs, which can gradually reduce cutting efficiency. Special processing technology: The replacement head features advanced processing technology that enhances the shaver's texture and performance. Restores performance: Replacing the head helps restore your shaver’s performance and delivers a better shaving experience. Regular replacement keeps the shaver in optimal condition for years. Color: As shown Material: Plastic + metal Package contents: 3 x knife net, 1 x knife head Note: Lighting and display differences may cause slight color variations between the image and actual item. Measurement error allowed is +/- 1-3 cm.