This item is often used for fishing for flatfish, cherry salmon, and other species. It has a structure that sinks by receiving resistance in the water and is used to sink lures and rigs deep underwater while being towed by a boat. It is painted black, and the manufacturer and size are unknown. The size is shown in the photos (4th photo), so please refer to them for your judgment. There are some minor scratches from use, but there are no noticeable ones, and it appears to be in relatively good condition. Please understand that this is a used item before purchasing. Please refrain from purchasing if you are concerned about the appearance. Several similar items of different sizes are also listed. We will also accommodate bulk purchases.