This is an auction for "PCD Conversion Spacer Multi II". ■ Dimensions of this product Inner diameter: φ147mm Outer diameter: φ170mm Thickness: 8mm ■ Set contents Aluminum baffles: 2 pieces ※ Mounting screws not included ※ Japanese instruction manual not included ■ Please be sure to check. Please assume that there may be minor scratches, chips, and scuffs that do not affect sound quality. Due to the nature of the product being processed, please refrain from purchasing if you are overly concerned about these imperfections.