Follow these steps on how to change razor blades for your Estrid razor!
1. Press the button to release the old blade
2. Make sure that the new blade has the dark blue strip pointing downward
3. Hold the new blade by the edge (be careful - it's super sharp) or keep it in its plastic cover
4. Press the handle down slowly in the center of the blade until it snaps and is in place. And don't forget to remove the plastic cover!