Easy to install Clean the razor before installing Please make sure of your razor model It is recommended to replace your shaving head every 18 months for better shaving performance Compatible with: HQ902, HQ904, HQ906, HQ909, HQ912, HQ914, HQ915, HQ916, HQ917, HQ986, HQ988, AT600 Product: Shaver replacement head Color: Black Material: Plastic + Metal Package Contents: 1 x Shaver Head Note: Due to grinding technology, the shaving head blades may not feel sharp at first and may require a break-in period to achieve optimal performance. The package includes only the items listed above; other products are not included. Please note that lighting effects and monitor settings may cause slight color differences between the image and the actual product. Measurement error allowed is +/- 1-3 cm.