This is a polished stainless steel oval-shaped muffler cutter. It has been used for about 3 months, so there are some minor scratches and dirt, but it can still be installed without any problems. The diameter of the connection part is about 6.3cm, so it can be installed on mufflers with a diameter of 3.5-5cm. The white polka dots on the rug are reflected in the product; please disregard them.