Testing SurvielZone's Dal 6040 props using my untuned Emax Nighthawk 250pro, very impressive prop so far. It is not unbreakable as most people claimed but its the most durable prop I have tried, unfortunately I only ordered a few, so I ordered some more for more testing and hopefully I could tune my quad next time so wont be too shaky also need to check the balance of these props out of the box.
Here's the link to buy these props:
http://www.surveilzone.com/High-Quality-Customized-6040-Multirotor-Propellers-Two-Pair-CWCCW-g-1351
