Out of the 4 sets, everything except the origami paper is unopened. The origami paper is 7.5 x 7.5 cm. The origami is 15 x 15 cm. This includes puzzle origami and sticker origami, which are unique types of origami. These items have been stored at home and are being sold at a low price. Also, due to the nature of the products, I would like to proceed with the sale with the understanding that returns are not accepted.