Braun Flex Integral, Contour Series 3 Replacement Shaver Heads 31S (5000 series, 6000 series) Foil and Cutter Set.
Electric Shaver Head Assembly For Braun 5610/5611/5612/5614/5414(31B)
Synergy Digital Shaver Battery, Compatible with Braun 5614 5723 Flex XP Shaver, (Ni-MH, 1.2V, 2000mAh) Ultra High Capacity, Replacement for Braun 1HR-AAAUV Battery - Walmart.com