✔Premium quality: Equipped with a cutting edge dual blade system with lift and cut technology. Stainless steel blades for a comfortable close shave. Suitable for meticulous grooming and ensures safe use. The flexible pivoting head adapts perfectly to any surface, always delivering excellent performance. ✔Compatible models：Blade model 21B, compatible with all Braun electric shavers series 3 shavers 301S, 310S, 320S, 330S, 340S, 360S, 3000S, 3010S, 3020S, 3030S, 3040S, 350CC, 370CC, 3050CC, Cruzer 6 and so on. ✔Professional shaving head:21b shaving head with floating lock, precision tooth comb technology and bionic mesh design perfectly fits your skin and grips the male hairs firmly, thus removing them easily without damaging the top layer of skin. Bring you a more comfortable and efficient shaving experience! ✔Long lasting: The lifespan of the foil and cutter replacement heads compatible with the braun s3 varies depending on your daily use. For optimal performance, it is generally recommended to replace them every 9-12 months. This ensures that you always enjoy the best haircutting experience. Replacement foil heads are easy to install and remove. Clean the shaver before installing the shaver foil. ✔Waterproof shaving head:Made of high-quality waterproof material, it works effortlessly in wet conditions, providing an efficient and stable epilation experience for the razor, just like the original razor head.Color: Black Manufacturer: HERBENJOY Model Number: 0 Part Number: 0Say goodbye to straggly beards! No more worrying about shaving heads breaking down too quickly, with this 21B shaving head, it is perfectly compatible with your electric shavers series 3 shavers 301S, 310S, 320S, 330S, 340S, 360S, 3000S, 3010S, 3020S, 3030S, 3040S, 350CC, 370CC, 3050CC, Cruzer 6 shavers, and other shaving heads. Shave every day and let your glamour out! Features 1.Shaver head maintain a sharp, responsive shave when used wet or dry, and cleaning with water after use keeps the heads hygienic. 2.The replacement foil head is easy to install and remove. Clean the razor before installing the shaver foil. 3.Dual blade system with lift and cut technology. Stainless steel blades for comfortably close shave. Suitable for precise carding, Completely safe to touch. 4.Just press and push gently when installing or removing. How to use Step 1 First remove the foil, either by pressing the release button if you shaver has one, or by pulling the foil. Step 2 Next rotate the cutter block by 90 degrees and pull it off, holding it at the ends to avoid touching the blades. Step 3 To fit new parts, simply carry out the same procedure in reverse. Safety warning This product is 100% safety to use! Note Commitment to Customers: If you are not satisfied with the product or have any questions, please contact us. We will immediately take care of your problem and offer you a satisfactory solution.