How can I close my whet stone cutlery matrix silver stainless Steel knife
I don't know how to close it
I don't know... I learned to safely close an ordinary pocketknife only because someone showed me. I am lucky I did not cut myself before then. I would not want to try to explain over the internet, especially in a text-only forum. Find an expert and get them to show you.
You can close it by flipping it towards the opposite direction. Make sure that the you do it carefully so that you don't injure yourself because the knives are known to be sharp.