I bought 18 of these props and they are all very bad, almost impossible to balance on a magnetic balancer.
I wish I had of known this prior to ordering.
BEWARE, very bad props.
Oct 25, 2013
I purchased several different sizes of these blades from 7x6s to 1147s and they are all the worst props I have ever used. The material is brittle and easily breaks on a prop strike. I have rebuilt my tricopter twice since I purchased these props due to the props coming apart in mid air (using 700kv motors.) Oh, and they barely even glow.