Thank you for viewing. This is a large floor cushion. It's a large floor cushion with a diameter of 70cm. The bottom is made of a material like jute, similar to linen. The black part appears to be wool. The cushion is firm and sturdy, so it won't collapse when you sit on it. After purchasing it, it was too large for my room, so I stored it without using it. It's almost unused, but please understand that it has been stored at home. Thank you.