These tangram puzzles are 180 pieces and there are patterns blocks and cards to follow. My autistic Grandson loves these and they help him to learn new things. Since he is non verbal he expresses himself with his letters and puzzles blocks. I got this one because it is easy to travel with, a great quality and still big enough for him to make different patterns. These puzzle pieces come with a nice draw string bag for storage, so it is easy to keep them all together for the next time. They are all safe and non toxic too.