It is just a clear plastic very lightweight. Will it protect the gimbal that is hard to say (doubtful) because the clips that hold it in are very weak, now when you cut away the body, it is bound to weaken it more. My cover broke with the mavic folded up and stored in the mavic bag.(the mavic has to sit face down in the bag) If it is going to crack and fall off in the protected bag I doubt it will protect against a crash especially with much of the body cut out. That is why I like the 3D printed version with the much stronger Nylon based composite.
I ordered the 3D printed version however for transporting I will use my stock (actually replacement as my original already cracked in the Mavic bag