Fangrui Product Details Hq69xx, 69xx, At620 (shaver Series 1000) And Also Compatible With For Philips Norelco Models: 31db, 6423, 6613, 6424lc, 6843, 6853, 6863, 6900 Series High Quality Dual Layers Cutters With Fine Steel Hq3 Norelco Compatible Withreplaces Hq4, Hq4 Plus, Hq55, And Hq55 Plus, Hq56 Fits For Norelco Models: 6948xl, 6947xl, 6945xl, 6940lc, 6900lc, 6863xl, 6856xl, 6854xl, 6853xl, 6844xl, 6843xl, 6618x, 6617x, 6616x, 6615x, 6614x, 6613x, 6424lc, 6423lc, Hp1318, Hp1319, Hp1327, Hp1323, Hp1327d, Hp1328, Hp1328e, Hp1337c, Hp1601, Hp1602, Hp1604, Hp1605, Hp1606, Hp1608, 700rl, 705rl, 710rl, 715rl, 720rl, 725rl, 750rl, 800rx, 805rx, 815rx, 825rx, 835r These High Precision Quality Are Of Manufacture ,and Are Not Manufactured By Or Affiliated With For Philips Norelco.head Recommended Annually New Blade After Installation, Place A Tiny Drop Of Oil On Each Screen And Allow Razor To Run For 10 Seconds. These Steps Will Help To Ensure A Properly-running Razor. Colour:silver Material:plastic + Metal Package