The Philips SH71/50 replacement shaving heads ensure optimal performance of the shaver. They are compatible with all Series 7000 shavers as well as the angled 5000 series. The self-sharpening SteelPrecision high-performance blades cut facial hair with exceptional precision and speed. At the same time, the blades are gentle on the skin and protect it. The shaving heads are easy to use and can be replaced with ease. For a close shave, the Philips SH71/50 replacement shaving heads should be changed every two years. For Series 7000 and the angled 5000 series Powerful with every stroke Easy to replace For optimal performance, replacement is recommended every 2 years A close shave thanks to self-sharpening blades 3 shaving head rings