Philips Series 5000, 6000 - SH50 Shaving Heads ReplacementWithin two years, your razor cuts 9 million hairs on your face, so replace your shaver heads regularly for 100% performance and perfectly smooth shaving. Philips SH50 50 shaving heads are equipped with MultiPrecision blades that raise and cut all hairs and remaining stubble all in a few strokes. The shavers have a built in relpacement reminder, which will light up when its time to replace the shaving heads. After replacing the shaving heads, you can