1. This is a replacement shaver head specifically designed for Braun Series 5/6 electric shavers. It includes the complete foil and cutter block assembly to help maintain your shavers performance. 2. The product is made from high-quality plastic and stainless steel, which provides strength and long-lasting use. 3. The knife net features an independent floating mechanism that allows it to adapt to various facial contours for a closer shave. 4. Recommended Replacement Cycle: For an optimal shaving experience, it is generally recommended to replace the shaver head every 18 months. This helps maintain peak performance and skin comfort. 5. Compatible shaver models: 50-R1000s，50-B1200s，50-B1300s，50-R1320s，50-R1300s，51-M1200s，50-M1000s，50-M4000cs，50-M4200cs，50-M7200cc，50-W4200，50-W4320cs，50-B7000cc，5018s，5049s，5050cs， 5762，5764，6075cc，6020s，6040cs，6072cc，6075cc，6090cc，7020s，7025s，7027cs，7071cc，7075cc，7085cc， 7089cc
