Sondergut -- Replacement Playing Pieces for Sondergut Roll-up Travel Chess & Checkers These replacement pieces are designed for our Sondergut Roll-up travel chess and checkers game. Playing pieces are 2 cm in diameter, about the size of a penny. Flip the pieces over and use as Checker pieces. Please note the size: It can be worked for your own games, but please note the small, travel size.