In the FPV industry HQ Props have become extremely popular. It is standard issue for some of the top FPV pilots in the world, including Skitzo, Mr. Steele and Ummagawd. With the craze towards "Durable" props, HQ has followed suite with arguably one of the preferred size specifications within the community, the 5x4.5x3.
Molded with a stiffer poly carbonate Material, these props will offer improved thrust levels over the Nylon versions due to less deflection at high RPM's. The trade-off is that they will not be quite as durable as the Nylon counterparts.