21B Series 3 Shaver Replacement Head - Foil & Cutter Cassette Cartridge Compatible with 300s, 310s, 3010BT Braun Razors, 1-Pack

-21B Small investment, peak performance. Within 18 months your ®Braunshaver will cut an average of 6,000,000 hairs. In accomplishing this substantial task, the cutting parts will gradually wear out and your shave may become less close and comfortable. That’s why recommends changing your shaver’s foil and cutter block every 18 months to maintain your shaver’s maximum performance. For a perfect shave every day. -How to replace your shave head. For older models which have a foil and a cutter block as two independent parts, you will need to change the parts in two steps: First remove the foil, either by pressing the release button if you shaver has one, or by pulling the foil. Next rotate the cutter block by 90 degrees and pull it off, holding it at the ends to avoid touching the blades. To fit new parts, simply carry out the same procedure in reverse.

Peak Performance: Maintain your best shave by replacing the shaver head every 18 months. Adaptive Shaving: Pressure-sensitive blades automatically retract to protect your skin. Efficient & Fast: 3 flexible blades for a quick, smooth shave. Simple Replacement: Easily attach your new shaver head with a click-on mechanism. Quality Craftsmanship: Designed for durability and precision.