Master Airscrew Performance 9x4.5 Multi-Rotor Series Propellers - Black, 2 pcs

This prop set works great for me on my plane. I only have a single motor so I would prefer having two props that are CW but they still work great. If I do want to use both props it's fairly easy to change the prop rotation in my radio. The props are very well balanced our of the box so I didn't need to do anything prior to installing them onto the plane. Great quality. I am very happy with them.

I am usually the guy to buy cheap props for my small copters because I beat them up so badly. I just recently built a new larger bird and decided to spend a few extra cents on better props. I had ordered a XOAR PJP set, and an off brand carbon fiber set along with these all in 12x4.5. Not only were these the best price, but they also functioned the best of the three. These props showed a significant near 2 minute increase in flight time over the others purchased. Not to mention They look good, balancing was reasonable, and the build quality is better than you would expect for this price. Highly recommended.

Looking for props for a new build of a Tarot 650. I was limited by the fact that I had 30 TY-Motor 2212s in stock and wanted to use them. After running the numbers on E-calc the 12x4.5s looked to be the best option but most importantly they were in stock on Amazon. Performance was very good and the only complaint is that there were no shaft adapters included. Luckily I was able to take some Gemfan adapters and ream them to the required diameter. Vibrations were lower out of the box (I have not yet balanced the props) and the craft handled very well. I'll be buying more for my other copters with the 2212s.

These are matched pairs of opposite pitch, or counter-rotating props. Unusual to find and I am using them in twin-pusher electric RC model airplanes. The counter-rotation cancels prop-torque and consequently leads to zero-roll under throttle. The props are well-made and balanced.

These props are okay, but what is the deal with not including prop adapters like every other manufacturer in existence. I ended up having to spend an additional $6 and wait several days for something that should just be included in the package.