The Pop-Up Chess Set can be opened or closed in any position. Should you need to pause a game simply close the board. When you have the opportunity to resume play open the board and the pieces will pop up in the same position as when left. The set is made from paper and card. No plastic is used. It is sustainable and recyclable. The unique design of The Pop-Up Chess Set makes it an ideal travel set but also one that sits neatly on a bookshelf at home.