Thank you for viewing. This is a joint mat from "Shina Pusu." I bought it for my child, but ended up buying something else, so I didn't use it. I would like to give it to someone who can use it. It's 30cm x 30cm, 6 pieces in a set, and each piece is about 1cm thick. As shown in the second photo, the packaging vinyl is partially torn, but it is new and unused. Thank you.