Set of 5 glossy black and red O-shiki (tray mats). While O-bon (trays) are for 'carrying things,' O-shiki (tray mats) are, as the name suggests, for 'laying things on.' They are placed on the table like a placemat, and dishes are arranged on top. Depending on the dish, such as sushi or sweets, you can even serve directly on the O-shiki. Size: Width 25.5cm Length 17.8cm Thickness 8mm Thank you for viewing. These were stored in their original box at my parents' house. The box has some age-related stains. They are not made of resin, but have a gentle, wooden feel. They are lacquered and very glossy. If you are interested in using them, please consider purchasing them.