Bullet Points:1High-quality Materials: Made of high-quality materials, so the shaver head is continuous, efficient and easy to use.2Suitable Series: Fit for Braun 3 series, such as 300S, 301S, 310S, 320S, 330S, 340S, 360S, 380S, 3000S, 3010S, 3020S, 3030S, 3040S, 3080S, 350CC, 370CC, 390CC, 3050CC, 3090CC, Cruzen6 and many more.3Replacement on Time: Shaver head should be replaced every eighteen months.4A Better Shave: Replacing your razor head a 25% better shave. For optimum performance, please clean regularly.5100% Performance: The replacement head provides your shaver back to 100% performance and a closer shave.21B, 21S, 32B and 32S are mutually compatible structures. They only have the difference in the color and design between the outer plastic frame and the middle cutter.Fit for Braun 3 series300S301S310S320S330S340S360S380S3000S3010S3020S3030S3040S3080S350CC,370CC,390CC,3050CC,3090CC,Cruzen6 etc.Specifications:Name: For Braun Cutter Head AccessoriesWeight: about 20gMaterial: ABS and stainless steelPacking List:Razor Replacement Kit * 1