100 Derby Professional Single Edge Razor Blades

1. Remove the old cartridge from the razor handle. 2. Carefully open the packet of new Derby Professional Single Edge Razor Blades. 3. Insert the new cartridge into the razor handle, ensuring it is properly aligned. 4. Prepare the razor for shaving by ensuring it is clean and lubricated. 5. Shave as usual, following the razors instructions for optimal performance. 6. After use, clean the razor and cartridge to maintain their longevity and performance.