We're really sorry about the mix-up, but it seems like you didn't actually order a chain from us. It looks like you might have mistaken us for another company. What you actually purchased from us was a swing arm. Our expert swing arm fabricator has over 25 years of experience in crafting these swing arms. If you accidentally ordered chains from a different supplier, please get in touch with them directly. If you encounter any issues with the swing arm you received, please don't hesitate to contact us - we're more than happy to help.