Chuo Kagaku Shiitake No. 1 B Transparent Disposable Food Tray Body Size: Approximately 15 x 11.4 x 2.2 cm (per piece) Material: Polystyrene Body Weight: Approximately 3.5g Country of Origin: Japan Heat Resistance: Approximately 80 degrees Celsius, Microwave Use: Not Allowed, Dishwasher Use: Not Allowed Used for 4 or 5 pieces, Due to specification changes, the remaining ones are no longer needed. I took out one for the photo, but All the rest are brand new and unused. I will send them via Rakuraku Mercari Delivery. I would appreciate it if you could use them. Thank you very much. m(_ _)m #FoodTray #TransparentTray #DisposableTray #FoodPack #CommercialTray #CommercialPack