Philips Norelco Shaver Head Blade Replacement - iFixit Repair Guide
Philip OneBlade Pro Kit, Hybrid Electric Trimmer and Shaver with Charging Stand and Precision Comb, QP6520 + OneBlade Body Kit, 3 pieces, QP610 + 2 QP220 OneBlade Replacement Blades - Walmart.com
Philips - Shaver Parts
Philips Norelco Series 3000 Replacement Head - Sh30/52 : Target