Thank you for viewing. I'm afraid I can't provide a professional explanation... Please make your judgment based on the photos. This is a very thick trivet. You don't see these very often, so how about taking this opportunity? ★Please ask any questions before purchasing★ ★Please refrain from purchasing if you are expecting a new item, as this is a used item★ ★Cancellations are not accepted after shipping★ I also have various other items for sale. Please take a look if you have the time ♪♪♪ Please read my profile again and consider carefully before making a purchase...