APC propellers computer-optimized design gives these props a thinner profile and more "bite" with less noise. Lightweight molded nylon construction reduces rotating mass for higher output and longer life. Reinforcing carbon fibers help maintain true, constant pitch at any rpm. Slo-Flyer propellers work well with Electric powered Park Flyer-type aircraft.
These APC props are super! They do not flex like the cheap plastic orange ones.