It is often used for fishing for species such as flounder and cherry salmon. It has a structure that sinks when it encounters resistance in the water, and is used to sink lures and tackle deep into the water by dragging it from a boat. It is painted black, and the manufacturer and size are unknown. I have included a photo (the 4th one) to show its size, so please judge from that. There are minor scratches from use, but no noticeable ones, and it appears to be in relatively clean condition. Please purchase with the understanding that this is a used item. Those who are concerned about its appearance should refrain from purchasing. I am listing several items of the same type in different sizes. I can also accommodate bulk purchases.