【Compatible with Replacement Heads】The heads are compatible with ,3 series shavers 3000s, 3010s, 3040s, 3050cc, etc. no matter which one you use, you can buy it and replace it easily 【Material】Stainless steel mesh fits the skin perfectly, works perfectly without hurting the skin, allowing you to have a good experience 【EFFICIENT SHAVING】 featuring 5 shaving elements to cut through millions of hairs with ease 【Use time and blade sharpness】 The unique reciprocating blade has a break-in period in the early stage. If you feel that shaving takes longer, that's normal! He only gets sharper with more use! This product uses stainless steel mesh to extend the service life of the blade, it is recommended to replace the new blade within 12 months 【After-sale Packaging】The package contains 2 blade - 2 brush - If you have any questions after receiving the product, please contact us in time, we will give you a satisfactory answer! ! ! !New and old packages are shipped randomly 2Pack 21B Series 3Shaving Replacement Head, Foil & Cutter Razor Head Suitable for All S3 Shaver Replacement Heads, Compatible with 3040s 300s, 310s, 320s, 3050cc 360s 370cc-4, 3090cc Etc.