Introducing "Sakanappe Uo-t-pei," a tool that makes it easy to fillet fish. It can fillet a medium horse mackerel in about 30 seconds, and a small horse mackerel in about 10 seconds. The serrated design firmly grips and peels off the fish skin, and the flesh can be scooped out cleanly with a spoon. Since there are no sharp blades, there is less risk of injury, and you can fillet the fish without using water or removing the innards. Can be used outdoors. Made in Japan with a spare spring. [Product Name] Uo-t-pei [Material] Stainless steel [Length] 155mm [Weight] 80g I have used it a few times, but it's perfect for those who want to try filleting fish. Thank you.