This is a 2.72kg shot put for junior high school girls. It is not unused. I think it's fine for practice. I suspect the color of the rust prevention coating from some manufacturer has come off, but I don't know for sure. As shown in the image, there is a stamp with the characters for "inspection" and an illustration of a person. I cleaned it up by polishing it because there was rust. How it looks is subjective, so please take a close look at the images before purchasing. I have no intention of selling anything defective, but to avoid any problems, I ask for no claims and no returns.