TandemQuantity:Pair (for Left and Right) [Material] ・BodyBody:Aluminum Alloy A6061-T6 material Anodized Treatment Key Sinter:Zinc Alloy Gold Key:Yellow copper,Bolt:Stainless SteelSUS304 or equivalent Car modelsExclusive Bracket:A6063 material Anodized Treatment Made by ABA Manufacturer Product Compensation:1 year after purchase (*Please keep your receipts and receipts in a large file for your purchase history). )