These are the most technologically advanced HeadBlade razor blades ever. Made using a Micro Tilted Grinding System coated with a micro thin film, the HB Triple gives the smoothest head shave possible. Contains four triple blades; a calliper designed for lifting the blades out of the protective tray, and two adaptors. Any HeadBlade razor can be used with these Triple blades providing the specially calibrated yellow adaptors are used.