Fishing hooks, also called fishhooks, are the most important part of fishing tackle. There are many kinds of hooks. Because there is no uniform specification and standard for the production of hooks at home and abroad, the types, models, sizes and naming methods of hooks sold on the market are different. For example, some are named after people; Some are named after place names; Some are named after hook shape; Others are named after what fish they catch. For another example, although the size of the hook is distinguished by making a number, these numbers are really confusing. Some big hooks are also big, while others are just the opposite. The bigger the number, the smaller the hook. For another example, the shapes of hooks are even more varied: the handle of the hook is long and short, the door is wide and narrow, the tip of the hook is short and long, and there are positive and negative angles, some tip of the hook turns outward, and some hooks buckle inward. Some hooks have barbs, and some hooks have no barbs.