Although the package was opened once, the item is unused. New price: 1000 yen + tax I am selling it because it was the wrong size. This is a high-quality stainless steel single muffler with a 15mm diameter. - Brand: ETO WORKS - Model: STD-S-6-15 - Material: Stainless steel - Diameter: 15mm - Type: Single muffler Thank you for looking.