Thank you for viewing. It has been stored in a wooden box, unused. There is some age-related deterioration, minor scratches, and soiling of the box, so I'm listing it as having some scratches and dirt. Clam shape: Black on one side, black and rough on the other side. 40 cm x 28.5 cm, 8 mm thick. Fan shape: Black on one side, vermilion on the other side. 40 cm at the widest part at the top. 23.5 cm at the widest part at the bottom. 26.5 cm long. There may be some slight errors due to amateur measurements. Please understand that this is a stored item. Please make your decision based on the photos and your understanding. Thank you.