1. Blade material: zinc-based alloy 2. Process: plating 3. Adapter blade type: universal double-sided blade on the market 4. Size: 10.5X5 cm 5. Rotate the handle mark 1 to the vertical bar mark, install the blade to test shaving. If you feel that the shaving is too sharp, rotate the handle mark 2-6 counterclockwise to the vertical bar mark. The sharper you have to be
