I don't understand why you want to slander us in the comments section. I have already explained to you very clearly that we are doing CIF trade terms. The charges at the port of destination are not collected by us, but by the port company at the port of destination. It is very unethical for you to stubbornly believe that we profit from it. We are just a factory responsible for production and transportation. The charges at the port of destination are not under our control. Moreover, our trailer accessories are complete and there is no possibility of missing. We will be responsible for installing most of the important accessories. Due to transportation loading issues, the towing frame will be disassembled for shipment, but the installation of the towing frame is also very simple and easy to install. Perhaps each customer's hands-on installation ability is different, but we cannot predict this.