Okay, so now we are going to prepare the onion and to do so we take onion. Okay, so we take this small part and we start peeling it. So now we have this sheet of onion cells and let's make it squared. And from here you take this small part and peel it out. So now you have your onion cells on your slide. Then you add metal and blue. So just drop part of it. Now we take the cover sleeves. One cover sleeve is enough and we are going to place it on top of our cells. You