COMPATIBLE WITH SERIES 5 & SERIES 6 SHAVERS - S5 5018s 5020s 5035s 5049cs 5050cs, S6 6020s, 6040cs, 6072cc, 6075cc, 6090cc and etc. CLOSE & SMOOTH SHAVE - Advanced 3 - floating blade cutting technology, handle the length of beard in all directions efficiently. Touch safely and protect skin from injury. Strong and stable product quality control. Enjoy your shaving moments！ FOR MORE SHAVING SCENARIOS - The 64B replacement head is made of premium metal material with a special process treatment that gives it good rust-proof properties, suitable for more shaving scenarios. QUICK REPLACEMENT - Easily attach a new shaver head in 1s with just one click. After installation you will get a brand new razor with performance restored to 100%. Please replace the Foil & Cutter replacement head every 15 to 18 months. PRODUCTS - New 64B replacement head x2.