The propellers are the basic need in almost every DIY project such as school projects, hobby projects, etc. They are used to transform rotational power into linear thrust for example – a simple fan. That’s why we are offering high-quality hard plastic build propellers that will suit your DIY project at their best. The 4 blade design provides much higher thrust than other propellers in the market. The total diameter is 92mm of the blade when rotate. They have high wear and tear properties.