This is a paulownia wood box for a Zeze-yaki tea caddy. It's from Yoen. The inner dimensions are 7.5 x 7.5 x 8.8 cm. Please allow for some margin of error. I purchased this tea caddy used, and the box and contents didn't match. I am selling the paulownia wood box only. There are some scratches and stains, but it's for those who understand and are looking for one.