1、Easy to install, clean the shaver before installation, after you change the shaving head, the shaving effect will increase by 25%. 2、The shaving heads are replaced every 18 months to maintain a snug and comfortable shave. 3、High‑quality alloy material, good wear resistance, not easy to corrode, and safe to use. 4、Suitable for multiple styles of electric shavers to help you improve the efficiency of the shaver. 5、When you feel that the efficiency of the shaver is decreasing, you can change the blade to make it work like a new one, saving you money on buying a new shaver. Item Type: Shaver Inner Blade Material: Alloy Fitment: Fit for ES/ 318/ 329/ 338/ 365/ 366/ 376/ 815/ 843/ 876/ 893 Fit for 3040/ 3042/ 3050/ 3750/ 3760/ 3800/ 3801/ 3830 Fit for 3831/ 3832/ 3833 Fit for ES-RP20/ RP40/ RC30/ RC40/ SA40/ ESB383 1 x Inner Blade Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store