Who can give us better details than Evan Turner himself about the characteristics of this props?
Here is what he had to say about the HQR38 on his announcement post.

“Its been a long time coming, but I would to introduce the Headsupfpv R38 prop from HQ! This props takes the best qualities from props throughout the market and somehow puts them all into ONE prop! Its incredibly responsive, has great durability for its weight and has the top speed that most if not all extremely responsive props lack.”

Check out our full line of 5″ props and HQprops

Propeller Diameter: 5.1inch
Pitch : 3.8
Blades : 3
Material : Poly Carbonate
Weight :4.4g
Hub Diameter :13mm
Hub Thickness:7mm
Shaft :5mm Compatible with POPO motor)
Adaptor Rings : NO