YoungRC F450 Drone Frame Kit 4-Axis Airframe 450mm Quadcopter Frame Kit with Landing Skid Gear

Sturdier than I expected. The arms do use a good quality of plastic. I did not use the legs, I may. The legs are as others say very flimsy but this is good, they bend and absorb impact and are cheap to replace. I use the stubby legs that are build on the ends of the arms The weight with no legs was 312g When I hold this frame by two of its arms and try to bend with just enough force that I see a small deflection I notice the bending is all in the arms. The fiberboard looks like it will not be very strong but it is. Even with all the cutout holes. This is an old workhorse drone frame, not intended to be a racer.

Easy to assemble, great, sturdy construction. This is a great base for DIY drones and looks massive and impressive when finished!.

Used as a donation for a few parts I needed. The two red arms mostly. The white arms are not as strong broke both of them but I am having problems getting an arducopter flight control working. Other parts swam to be holding up.

This is a great frame, much better than the previous carbon version. Have integrated power board for soldering up esc and battery cables. Arms are rigged plastic and got enough material in it to stand up to some abuse.

Very solid Quadcopter Kit. I used this for a drone class in college which we built our own drones all using this exact brand. It survived a crash and held up great!