This item was meticulously crafted by TCC over two years. The brass cups have been treated with an anti-oxidation process, ensuring they won't deteriorate even after years of use. The weight has also been carefully considered. The most user-friendly weight was thoroughly pursued, resulting in a weight of 0.285 kilograms. The balls are also carefully made. They are completely hand-knitted with yarn, and are weighted for easy handling. The product includes three cups, four knitted balls, and a carrying bag. This is not a combo cup set. There is a dent in the corner of the outer box. The contents are new and unused.