Calling it now, roller claw! What’s the material made of/what is the weight? I’m assuming the rear holes are for mounting purposes? Looks pretty, aesthetics are important. Nice work!
Not sure on the weight, the material is “the only sheet of anything we had that was big enough” 
it’s some sort of plastic.
The 8020 is probably going to be replaced with 1/2" hex standoffs to reduce weight, but the standoffs haven’t arrived yet and we wanted to move forward.
Looks like the material might be delrin