You should replace the foils on this model every 18 months. A new replacement head runs about $60. Braun’s models sport grippy rubber on the back that helps you get a firm grasp on the razor.

World's # 1 Foil Shaver Brand Official Electric Shaver of the NFL Replacement head fits Braun Series 7 (720, 760, 790, 799 and 797) Shaver head should be replaced every eighteen months.

Braun recommends replacement every 18 months (the block ... One warning for on-the-go shavers: The foil heads found on most electric units are fragile, and if you dent or bend one, you'll need ...