This was installed on a Mitsubishi Delica D5 gasoline car, model CV5W. It was removed because I replaced the muffler and couldn't use it again. Made of stainless steel. It appears to be made by rolling and welding sheet metal, but the seams on the outside are completely invisible to the untrained eye. I think it's very well made. It can be installed in the same direction as the muffler. It is not suitable for recent downward-facing muffler cars. It is fixed by tightening a metal band. Can be installed with a flathead screwdriver. Diameter up to 60mm; I think it can barely fit up to 65mm. I polished it, but it is a used item that was used for about 5-6 years. There are dirt and scratches. Please purchase with understanding. - Quantity: 1 - Weight: Approximately 400g No claims, no returns. Thank you for viewing.