Good to know - Your shaver head will last you up to 18 months - replacing it ensures high-qualty shaves and extends the life of your trimmer- Simply click on to your new gen Series 5 or 6 shaver and you'll be looking your best in no time- The swivel head can manoeuvre around tricky facial contours like your jawline- On Series 6 models, this head supports SensoFlex, which reduces pressure on your skin