Idle fish and fishing rods are all anti-counterfeiting with bar codes. Most fishing rods, especially well-known brands, have bar codes, and some bar codes are in front of the handle of the fishing rod. Scan code to find a lot of fishing rod information and instructions. E-commerce is so developed today, there is no bar code, it must be a product of a small factory. From the official account of brand WeChat, to bar code, to after-sales products, it can basically be solved online.