Replacement heads HQ8 for philips norelco is designed based on the curve of human face so it fits perfectly to your face. The low friction tip can conform to the curve of your face and protect you from skin damage. HQ8 Replacement Heads Compatible With philips norelco Hq8 Shavers AT810, AT830, AT850, AT880, PT720, PT730, PT860, HQ8505, 7340XL, 8894XL, Series 7100, 7200, 7300, 7700, 7800, 8800, Series PT/AT700, PT/AT800 etc. HQ8 Replacement Heads for philips norelco hq8 Shavers has an arched edge design that allows the blades to slide smoothly on the skin, allowing you to always have a comfortable close-shave experience. HQ8 heads after installation, place a tiny drop of baby oil on each heads and allow shaver to run for 10 seconds. These steps will help to ensure your shaver properly and smoothly running. Product includes only 3 new upgraded HQ8 Blades and 1 brush. It is recommend to replace HQ8 replacment heads every 6 months for best performance. for philips norelco hq8 replacement heads for philips norelco aquatec replacement heads for philips norelco at810 replacement blades for philips norelco 7310xl replacement heads for philips norelco at810 replacement heads for philips norelco aquatec replacement blades for philips norelco pt720 replacement head aquatec blades or philips norelco PT720, PT730, AT810, AT830, HQ8445 HQ8830 HQ8850 HQ8870 HQ8880 HQ8882 HQ8890 HQ8894 HQ8825 HQ8845 HQ8865 HQ8875 HQ8885 HQ8893 HQ7120 HQ7141 AT750 AT751 AT890 AT891 PT710 PT715 PT720 PT725 PT730 PT735 PT860 PT870 and more