The Series 21B razor head is a compatible replacement blade that can cut approximately 600-750 hairs with about 18 months of use. - Model: Series 21B Razor Head - Compatibility: 300S, 301S, 310S, 320S, 330S, 340S, 360S, 370S, 380S, 3020S, 3020S, 3020S, 350CC, 370CC, 390CC, 5777, 5779, CRUZER6, etc. - Replacement目安: Can cut approximately 600-750 hairs with about 18 months of use. Thank you for viewing. The products on sale have been opened to check the contents, so they are unused, but I have selected "Like New". [Product] Compatible with Braun Shaver Replacement Blade Series 3 F/C21B 21B 32B 3010s 3020s 3040s 3080s 310s 320s 350cc 32S 21S Men's Shaver Replacement Blade Compatible Product Shaver Accessories Replacement Parts Electric Shaver Replacement Head Razor Accessories Immediate purchase & no comments & silent purchase at midnight OK! Welcome bulk purchases, feel free to comment! The entire shop is #chanMercari ← Other products One item only, first come, first served ♥ 《 All products are free shipping ♪》 ＼ There is a great discount information ／ Please see the profile! Please check the condition of the product in the photos, The actual product may differ slightly in color due to differences in the shooting environment and viewing environment. [Product Description] Also compatible with F/C21B, F/C32B, F/C32S, F/C32B-5, F/C32B-6, F/C32S-6, etc. [Replacement目安] Approximately 18 months. The shaver parts wear out over time and their performance deteriorates, so we recommend replacing the shaver head every 18 months. Integrated net blade and inner blade cassette type. Replace the net blade and inner blade at the same time for a shave like new. . Please understand that it is stored at home and will be shipped in simple packaging. 17-112 1499