It's a mysterious tool. Width: Approximately 20cm Height: Approximately 10cm Thickness: Approximately 1.3cm Please allow for some error. According to the owner of this item... It seems that putting it in the cooking oil of a fryer or deep fryer slows down oxidation, making the oil last longer. They also mentioned experiencing a reduction in frying time. Furthermore, it reportedly cost over 30,000 yen when purchased... There seems to be a similar product called "Abura Mochitsukukun?" (Oil Lasting Guy?), and it feels like it might be a similar type of item, but the details are unknown. Anyone who knows about it, understands it, is curious, wants to try it, runs a deep-frying restaurant, manages a restaurant, etc., please take a look. If the above is incorrect, please point it out and provide guidance. It seems that washing it with detergent is not recommended, so it has been boiled and simmered in hot water several times to wash away the oil. However, there is still a slight, faint scent of oil remaining. Since it is used, please keep that in mind, and those seeking perfection should refrain from purchasing. Shipped via Mercari delivery. #OilLasting #CookingAidTool #MysteriousTool #Fryer #FryingOil