Easy to install. Clean the razor before installing. Please make sure well your razor model. Suitable for shaver models: HQ912 HQ913 HQ914 HQ915 HQ916 HQ917 HQ902 HQ904 HQ906 HQ909 HQ986 HQ988 Colour: black Material: ABS Size: 4 x 3 x 2cm Package Contents: 1 x Shaver replacement head Only the above package content, other products are not included. Note: Light shooting 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.