This is a pair of solid cork dice. Each 8-inch wall is 8-inch square and weighs about 4 pounds. Cork is unfinished and is naturally anti-microbial. It can be cleaned with water or any eco-friendly cleaner.
If there are marks (ink, sharpie, wine), they can be wiped if they are still wet or sanded. We are a furniture designer who uses a lot of cork (it is renewable) and these designs are made from parts that are left over. The cork we buy comes from the Portuguese, it is made from the bark of the cork which is crushed after the wine corks and corks have been punctured. Therefore, this is a post-production, pre-consumer waste that is compressed into slabs and cylinders that are used in a variety of industries.