The characteristics of our propeller are as follows. 1. Our products are designed to protect gears and shafts better than other propellers.So you can use the outboard engine longer. 2. Our propellers are light in weight and have the same performance as aluminum propellers. 3. It is very cheap than stainless or aluminum propeller. 4. Nevertheless, Our propeller uses either a SOLAS RBX Hub Kits or a BS Hub Kits(BackSan Propeller, South Korea). 5. Only broken blades can be replaced at an affordable price. 6. So, Consumers are more satisfied with xcomp than aluminum propellers. 7. Our product uses the same hub for each class. you can change the pitch easily by changing the blade. 8. Our product can be used only by changing the hub-kit for each engine brand in the same propeller. So you can reduce the burden of the stock.