Braun Series 6 Electric Shaver Replacement Head with Sensitive Skinguard, Easily Attach Your Shaver Head, Compatible with New Generation Series 6 Shavers, 64B, BlackCOMPATIBLE WITH: This replacement head works best with these Braun Series 6 Shavers: 6120s, 6140cs, 6172cc, and 6175cc but is compatible with all Braun Series 5,6,7 flex new generation shavers PEAK PERFORMANCE: Replace after 18 months for a shave as efficient as day one. Routinely replacing your shaver head, your shaver will stay at peak performance for years GENTLE SHAVE: For a gentle shave thanks to the new Sensitive Skinguard EASY REPLACEMENT: