By the way, the boxes I took first are these. I agree with the owner now. They are good enough to use to me but the point is, to spend time for making things with your hands and sell them. You could charge more for that too!
This is the inside of my handmade box. As I said I was worried about the durability but it's turned out quite strong.
Another piece of advice from the owner was where to put a company label. At first I put it on the top of the box but she said it's better to put it on the back as costumer can use the box for any ways and it's better value for money and still the company information is there. I and my husband have never thought that before so this was really helpful advice.
Oh I'd better go now! I'm teaching Japanese this afternoon!
Thanks for reading and I'll write again soon!