Which is always changing and updating with new versions. This specifies the specific handle in which blades and other parts attach to. It is an original authentic Braun part number 81695626. Fits type 5513, 5514, 5515, 5516, 5517, 5518, 5541, 5542, 5544, 5800, 5802, 5804, 5805, 5806, 5807, 5808.
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