It's 20 cm, is perforated, not consistent with the picture. The product label says it "does not provide full thermal insulation, so it should be used cautiously ..." It is made in CHINA. I would have liked it to be manufactured in Europe: France, Italy, Germany, etc ... So 4 stars for that. I hope they last as long (over ten years), as the other I-shaped leaves, silicone (triple the funds they support my super hot pans stainless steel, I can not find for buy) and I use every day in my work plan, they are still beautiful, they are made in Italy, beautiful quality. I have a friend who bought the "same sheet form" made in China and they melted.
This trivet THE CRUCIBLE I will use on my dining table, it is distinguished, "French touch" requires, I think I can trust, is still THE CRUCIBLE. The red is very beautiful and can coordinate with many types and colors of tablecloths, it can go anywhere. Although it is manufactured in China, I bought a fourth to be comfortable with my hot food on my table because it has a small size and can easily put four on a table for four hot dish.
