The best-quality material from Germany to make all propellers. The German Pollmeier lumbers are pre-treated, which is important for minimizing elongation, breakpoint and distortion rate. CNC digital imaging process ensures consistent quality in diameter, propeller blade profile and pitch. The propeller shape is optimized to be the most efficient by computer simulation and real-flying experience. Each Propeller is well-balanced twice before and after it was painted. All of these make the propellers stand out from other RC Propeller competitors.