HBX rear bumper
thingiverse
I managed to crack the rear bumper of my HBX Massive X, which prompted me to order a new one immediately.
Download Model from thingiverse
With this file you will be able to print HBX rear bumper with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on HBX rear bumper.