I don't know the details. It's new and unused, but it seems to be old. The box is damaged. I think it would be good as a cutting board for cutting sashimi or meat. I will ship it via post. If it doesn't fit in the post, I will take it out of the box and repackage it. I will try to send the box as well. The following is a Google search description: This image is of the package for the "Kaitokun SI" thawing plate, which quickly and deliciously thaws frozen food. It is said to thaw about 3 to 5 times faster than natural thawing, without using electricity or gas. Because it doesn't apply heat, it can preserve the original taste of the food. It is explained that it can thaw even frozen tuna. Manufactured and sold by CEIKO Co., Ltd. A convenient cooking tool for quickly and deliciously thawing frozen food. - Brand: EIKO - Product Name: Kaitokun S1 - Function: Quickly thaw frozen food - Features: Retains flavor without losing heat - How to use: No water needed, no gas required - Size: Approximately 30cm x 20cm Thank you for viewing.