For Braun Combi Pack 31b to Series 3, Contour 5877, 5887, 5888 350 360 5873 5874
31B Shaver Foil and Cutter Fits BRAUN SHAVER 5000/6000 Series Contour Flex XP Integral. Does NOT fit Freeglider models: 6690, 6680, 6610 or Series 3 type 5775. -Clean the razor before installing. -Easy to install.