Philips Norelco RQ12PRO Replacement Shaver Head for Series 8000 and arcitecAbout the product Replacement blades compatible with Philips Electric Shaver Series 8000 (SensoTouch 3D) and arcitec (Philips Norelco 12xx) The newly designed V Track Precision Blades PRO position each hair in the optimal cutting position to deliver our closest shave, even on a 1 3 day beard For maximum shaving performance, it is recommended to replace your shaving blades once every 12 months RQ12PRO (RQ12 72) is the new and improved shaver head