Thank you for looking! I'm selling this because I used it for a little while, but I don't play with it much anymore. ・I believe it was the Dream Set Basic with 578 pieces, but I threw away the instructions, so I'm not sure exactly. I think there are about that many pieces, so please check the photos for the volume. ・Please be aware that my child may have lost some pieces. ・The included poster and case are not included. Only the blocks will be shipped. ・Original price was about 15,000 yen. ※No pets, no smokers. I plan to ship via Rakuraku Mercari. Thank you!