Easy to Use: Front hinge technology offers greater angular flexibility and a sensor head that adapts to the curve of the face like water. Good quality: The 3 layer blade is universal, convenient and fast, to meet your needs. The 3 layer blade: is universal, convenient and fast to meet your needs, the elastic sensor blade helps to detect subtle waves on the skin of the face. Double lubrication strip: Double lubrication strip secretes more lubricating fluid and makes shaving smoother Lubrication strip on the will gradually turn white, reminding the need to replace blade. Product Description Men Razor Blade Refills Good Assistant For Smooth Shaving Double lubrication strip secretes more lubricating fluid and makes shaving smoother. Read more Upgraded Version Made By Professional Technology Front hinge technology brings greater angular flexibility, and sensor head, which fits facial curve like water. Read more