Unit Weight (g):
Worst props ever. Quality has gone downhill. The blades are extremely thin and severely distorted. Out of the 8 I bought 2 were barely usable and I decided to use use them anyways. I balanced and install the best ones out of 8.One broke mid-flight while hovering on the second flight and ruined my never crashed quad copter. Used to be better.Great product, fits nicely with my 2204 motorsthis product is good with mini quads 250 plus-500 g.They break far to easily! The blades shear right off at the hub. 3 times now. First time I figured I over stressed the blades doing up the nut (they lasted the longest). Next two failures were with pristine blades and were flown gently. I didn't believe the negative reviews. I gave them the benefit of the doubt after the first failure and bought 6 more sets :O Getting sick of making replacement arms!
for fpy racequads with 2204 motorsVery good quality,my mates are green with envyGreat props for the baby beast motor. Night and day difference from the 5030. They fly more stable and have lots of power. I'm so happy I ditched the 3 blade 5" props.These will break mid air! Fortunately I was landing and only 8' up. The prop blade snapped off and the hex went diving into the ground. I found the prop blade and it broke off right at the hub. The end/tip was fine so clearly it didn't hit anything and snap off from the impact.
Avoid these. Not worth potentially wrecking your copter, and definitely not worth the safety hazard they pose to those people and property on the ground where you fly!
i use on my qav 250cheao and functional props, But they broke easy. Just a touch to an obstacle and you have to replace it.