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These props are very well made. 2 of the 4 I received were perfectly balanced.
They perform excellent and are extremely strong. Not often the props survive a crash but these did. I am impressed.
My quad is 1.36kg without battery. Quanum MT Series 4010 475KV 8.6A & 1020g thrust on a 4S.This product is used as a new drone propellers.
680 geotinde be applied to the frame, I hope well.I have used these props before and just ordered some recently. Best props for the size. Always use the direct mount for max efficiency, less weight, vibration and slippage.Trs bonne hlice sur mon dij f450 pour le fpv aprs un bonne quilibrage le top...This is a first....all four props were perfectly balanced both vertically and horizontally. Been buying props of all sizes from various venders for years now. The past two years I've bought props exclusively from Hobby King and why?? Better quality, uniformity in size and weight, consistent balance with minimal need for me to balance, lowest price, and last but not least....fastest shipping...again consistently ships from China in 7-8 days even faster Priority from the USA. The tracking even works. I am hard to please....HK is the best in the business period!They work well, but they are not carbon, they are plastic covered in a very thin layr of carbon . But for 5 follar each they might be worth it.I found these to need only minimal balancing, they are very light 11-12g, & more quiet than the APC MR 1245 they replaced.This is a very nice prop. I have a set for my 500 class build and they are very stable and efficient.not the cheapest but great performanceNeed to be balanced but overall really good.