Replace Shaver Head .Compatible For FS903 FS921 FS901 905 907 Holder Accessories. head gently places each hair in the optimal shaving position, cutting 30% tighter with fewer strokes to keep your skin in good condition. Built-in ultra-thin head with slots lifts hair and then cuts below the skin for an easy shave of long hair and is also suitable for shaving short stubble. Replacement blades conform to the of your face 360-degree seamlessly, keeping the shaving in close contact with your skin for a gentle, painless and smoother removal. Rounded head design perfectly protects your skin from scratches. These razors can be used for both dry and wet shaving and are also easy to wash and clean with water. Once installed, run a drop of oil on each nozzle for 10 seconds for the best experience. It 's recommended that you replace your heads every 12 months for maximum shaving performance. Colour:Black Material:Metal Package Contents: 1 * Replacement Complete Head Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.