Features: Made of high-quality materials, so the shaver head is durable, efficient and easy to use. Compatible with Braun32B, Braun 3 series, such as 301S, 310S, 320S, 330S, 340S, 350CC, 360CC, 360, 370, 380, 5774, 5775 and more. Shaver head should be replaced every eighteen months. For optimum performance, please clean regularly. The replacement head provides your shaver back to 100% performance and a closer shave, making shaving faster, smoother, and more thorough. Note: 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. The 21B is suitable for new 3 Series shavers without head locking function. Specification: Type: Replacement Shaver Head Material: ABS & Stainless steel Color: Black with silver Package Size: 6*3*3cm/2.36*1.18*1.18in Package Weight: 20g/0.7oz Package List: 1 * Replacement Shaver Head