【Compatible】 The shaving head is compatible with SH90 and S9000 series shavers (S9311/27, S9311/84, S9311/87, S9321/88, S9511/63, S9531/84, S9721/84, S9721/84, S9722. 1/87, S9721/89). No matter what model you use, you can buy and replace it easily.
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