This is classic 5x4.5x3 blade from HQProps. Prop design and flight characteristics are very similar to DAL 5x4.5x3 V2, DYS 5x4.5x3. Its rather heavy blade so it suits better for high-torque motors. Perfect for racing because the prop is really durable. Despite of its heavy blade this design is famous for its efficency, grams-per-watts ratio.
