1.Suitable for 3 series 30B :310,330, 340, 199, 197s-1, 195s-1,199s-1, 4735,4736,4737,4745,4775,4835,4845,4875,4876, 5713,5714,5491,5492,5493,5494,5743,5745,5742, 7475,7493,7497,7504,7505,7510,7511,7514,7515,7516,7520,7526,7540,7546,7564,7570,7630,7640, 7650,7664,7680,7690,7763,7765,7783,7785,7790,2, Materials: It is made of selected materials to achieve continuous, efficient and easy-to-use characteristics.3,The Best Shaving Effect: In order to get the best shaving effect continuously, we recommend that you change the shaving head every 18 months. Within 18 months, your electric shaver can trim more than 6 million hairs, thereby gradually reducing pruning performance.4,Special Processing Technology: The replacement head adopts a special processing technology to which more highlights the texture of your shaver.5,Restore Performance: Changing the head can restore your shaver"s performance and get a better shave effect. By changing the head regularly, the shaver will maintain its best condition for many years.Color: as shownMaterial: PlasticandMetalPackage Contents:2 x shaving accessoriesOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days.When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specificationsWe want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you.Thank you for choosing our product. We hope you enjoy it