9x4.5三刃反向旋转螺旋桨顺时针和逆时针旋转 - 黑色（1对） - 完成与间隔环。
Unit Weight (g):
nice replacement for my canada airVery silent, nice propeller. Hard enough, but will alway break, what ever it hit, sometime I even think grass will break it, so buy some spare ones.
Got it on my quad, and with these the quad is very stable, very smooth and very silent. I recomend it.
Just to say, these propes are indestructible! had two major crahed with my Tri and on both occasions casued substantial damage to pretty much everything, except the props, no a scratch, bought these in place of the other 9inch three blade props hobbyking sells, never going back!A good prop for the price Needs some balancing but is not a problem. Props are ridget and have a large hub. I use them on my X525 from HK 30A afro's and tgy 2830 1000kv and gets only luke warm.With a kk2.1 board its a dream to fly. Cheers.