CRW® Walkera QR X350 Quadcopter 8045 Carbon Fiber Propellers Props Main Blades

Good quality carbon-fiber, nice and rigid and fairly well balanced. My only big complaint is that the shaft opening isn't quite the right design for the stock Walkera QR x350. The shaft keys in the props are not full length and the top of the shaft hole is not sized down to fit the threaded shaft diameter. I had to use a few carefully sized flat washers to allow the stock prop nuts to properly secure the props. Without them, they will still wobble on the shaft even with the nuts at full tightness. Needless to say, wobbly props would lead to disaster in the air.-1 star for balancing-1 star for shaft fitment issues

So I bought these props earlier this month (3 weeks later) I had them in my hands and was flying with them.I didn't balance the props, though if you're somebody who has the stand, it's worth doing.For using it after two weeks, I have no complaints other than the hole in the center of the props wasn't sized properly so all 4 props would rock side to side. They didn't spin on the motor when idle, they just didn't fit securely in the motor.Aside from that and the ridiculously long shipping time, I was able to fly for more then 7 minutes in a single charge. I'm highly satisfied. Unfortunately I crashed my QRX350 tonight and one of the props snapped so I'll be definitely ordering another set.

Ordered these to upgrade the original props, every one was very heavy on one blade, three layers of PU spray did not help to balance, emailed the seller- not even an answer, will not bother sending back. Use original props or spend some more money and get something decent. I'm not new to the hobby( 35 years) but these were the most unbalanced props I ever got, you can even see the difference in fabric saturation just by looking at these. Stay away.

Except for the very good quality carbon fibre and materials WASTED on these "products",there is nothing good to be said because :-these propellers are anything but balanced,visible with naked eye(blades thickness obviously uneven) ; one must file and polish one blade to balance the propeller WEAKENING the strenght of that blade,given the structure is a core of straight carbon fibre filaments sandwiched between two very thin layers of carbon fibre cloth.-the "8mm" hub hole has nothing in common with what it should be in terms of precision shape and fit ; given the bore is not 8mm and HAS NOTthe FLAT NOTCHES to go/fit against the flats on the motor shaft,they are DANGEROUS for both,user and RC aircraft,making possible a potential accident if the FRICTION ONLY retaining force gives way and the propeller separates from the motor.The HUB BORE profile should be identical with that on the genuine Walkera plastic propellers.On quads,2 of the propellers spin CCW while ALL 4 MOUNTING NUTS are CW => understress,vibrations...,etc the mounting nuts can get loose and...,try to imagine.-REAMING/FILING the bore in the hub to bring it to the right size and create the flat surfaces will interrupt the carbon fibre structure of the most stressed area of the propeller making an accident by fatigue breakage possible.-PROBABLY the guys who "designed" and manufacture these "objects" have no clue about the technicalities of RC models in general and quad-copters in particular...-If I could give it a zero I would.

Once I balanced these carbon props out, they were good to go. I have them on my QR X350 and they almost completely eliminated the jello effect on my video recording. I am using a GoPro silver camera on my quad. She fly's really smooth with these props.Shipping was a little slow, but worth the wait. I would recommend buying these little puppies.

These propellers do not fit the QR X350 Pro at all. Do not believe what someone else has written. They are also 1" shorter then the original ones. I advise not to purchase, go with the original.

These carbon fiber props are super! Lightner than the factory props, and the performance increase is immediately noticeable. Going to buy a set for my QR X350 premium I'm building from scratch.

DO NOT! Buy these from BTG mine are an inch to short and don't even fit with nut all the way tightened they wobble around. Piss poor product.