Series 7 70S Replacement Head Foil and Cutter Cassette Replacement Compatible with Braun Series 7 Shaver Razor 720, 730, 760, 790, 7840s, 7842s, 7850cc, 7855cc, 70s Replacement Head BladesService and Packaging: The package contains 1 blade. If you have any questions after receiving the 70S replacement head, and we will give you a glad answer. it's recommended that you replace the replacement head every 12 to 15 months to reduce the degradation of shaving performance. Silent Using: 70S Replacement head blades compatible with Series 7 replacement parts, the decibels no more than 30 dB, very comfortable and get a silent shaving experience. Moreover, it's easy to replace your razor. Comfortable Shaving Feeling: Series 7 70S Replacement Head for series 7 is designed with automatic floating, it can automatically fit undulating facial contours, and give the face a very comfortable and natural feeling. Clean Shave: The geometric mesh film of series 7 Replacement Head Blade fits closely to the face, the ergonomic design provides a larger contact area for a clean shave, and there is a lift trimmer in the middle to lift difficult areas of the beard, no residue on the chin after shaving. Applicable Models: 70S Foil & Cutter replacement heads are compatible with Braun series 7, such as: 720, 730, 760cc-4, 760cc-5, 790, 790CC, 790cc-3, 790cc-5, 790cc-4, 795cc-3, 765CC, 765cc-3, 765cc-4, 797cc, 789cc, 799cc, 795cc, 735s, 799, 797, 7840s, 7842s, 7850cc, 7855cc and more.