Easy to install and cleanOur replacement head only needs to remove the old blunt blade, then clip the new blade into place and snap it into place. After-sales serviceIf the product has any quality problems, feel free to contact. Use time and blade sharpness The unique reciprocating blade has a break-in period in the early stage. If you feel like shaving is taking 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 MaterialStainless steel mesh fits your skin perfectly, works perfectly without hurting your skin, allowing you to have a good experience Product upgradesThe newly upgraded shaving head can easily shave millions of hairs, equipped with 5 synchronized shaving elements, providing an efficient and smooth shaving experience. High-quality materials and sturdy structure provide long service life. Safe and less irritating Compatible with Replacement Heads The 70s replacement head compatible for Braun Series 7 shavers, including 720cc, 725, 730, 750 760 765, 790cc, 795cc-3 797 799; 9565 9595, 9781, 9782 , 9795, 9785, 9581, 9585, 9591, 9791 etc.