The latex tube-powered harpoon is an underwater fishing tool that utilizes a highly elastic latex tube as its power source, commonly used in diving fishing activities. It stores energy by stretching the latex tube, which then propels the harpoon upon release. With its simple structure, low maintenance costs, and rapid response, it is well-suited for hunting small to medium-sized fish in clear shallow waters or rocky areas.  Latex tube-powered harpoon This type of harpoon is primarily divided into two categories: Handspear: Powered by one or more latex ropes, it is launched by manually stretching and releasing. It has a relatively short range and limited accuracy, but is affordable and easy to use. Speargun: Featuring a closed-track design, it is powered by one or more rubber tubes and fired by pulling the trigger. Similar in principle to a crossbow, it offers long range and high power, making it a mainstream choice.