This is a firm living room cushion. It's a marbled black color. It's a bit blacker in person than in the photos. The pile is a bit long, but it can be used in all seasons. It can be used as a footrest under a child's desk to prevent cold feet! I think it can also be used as a step for pets. As shown in the second photo, the bottom 12cm is firm, and the top 3cm is soft memory foam. Your bottom won't hurt. You can use it like a stool, not just a regular cushion. You can stand on it and it won't collapse. You can also sit on it instead of a chair. It's the perfect height for a low chair stool. It's very light, only about 600g, so it's easy to move. It's very comfortable when you're sitting on the floor to do things like ironing. It's the right height to use as a cushion, so your bottom won't hurt, and it's easy to stand up. It's a little too high to use as a pillow when lying down. You can stack two of them, and it will be the perfect height to sit on. 40cm x 40cm x 15cm Approximately 600g