How to replace half a rhinoceros blade with an old razor made of cheese?

1. First of all, there is a button on the handle of the old-fashioned cheese beard scissors. If you press the button with your thumb, the plastic on the tool holder will automatically fall.

2. Secondly, replace the clip half with a rhinoceros blade.

Finally, there are three clips in the middle of the handle. Just aim one of them at the concave place on the back of the blade and push it gently.