【SUITABLE FOR】 Compatible with Series 3 shaver replacement heads 3000s 310s 3040s 3050cc 3010s 3070cc 3080s 3090s 350cc-4 370cc-4 380s-4, 3090cc, 320 330 340 360 380s. | 【PROFESSIONAL FOR SHAVING】The shaving replacement head applies floating 3-blade, precise tooth comb technology and bionic mesh design, which can bring you a more comfortable, efficient and pleasant shaving experience. | 【GOOD ATTRIBUTES】 The S3 shaver replacement heads are made of high-quality materials with good waterproof and rust-resistant properties, making it easy to remove and clean after shaving. | 【SERVICE LIFE】 According to laboratory data, it is recommended that you replace the Foil & Cutter replacement head every 12 to 15 months to reduce the degradation of shaving performance. | 【2 in 1 VALUE SET】 Each kit contains brand new 21B Foil Shaver heads x2. In addition, we try to use simple but effective packaging to avoid wasting paper due to over-packaging. If you have any questions about our products, please feel free to contact us.AIDMTONGASKARRETERAPY