3pcs HQ3 HQ4 Replacement Head Razor Blade ，Compatible for Philips ， HQ56 HQ55 HQ46 YS501 YS502 AT600 AT610 AT620 HQ6990 HQ6996 HQ6868，Shaver

Maintain shaving efficiency: Old bits can become dull after a period of use. The replaced head has a sharp edge that can easily cut off beards. Reduces skin irritation: As the head wears out, it is easy to pull the beard when shaving, which in turn irritates the skin. After replacing the head, the beard can be cut cleanly and without pulling, thus reducing skin irritation. Guarantee the quality of shaving: After a long period of use, the shape of the head may change slightly, resulting in the inability to conform to the contours of the face during shaving, the replaced head can better adapt to the contours of the face, shave the beard more cleanly and neatly, and improve the quality of the shave. Extend the service life of the shaver: when the cutter head becomes dull, the motor needs to increase the load to rotate, after replacing the cutter head, the shaving process is easy, and the motor and other components will not be damaged due to overwork. Compatible for Philips ， HQ56 HQ55 HQ46 YS501 YS502 AT600 AT610 AT620 HQ6990 HQ6996 HQ6868