Chocks
thingiverse
This is a collapsible set of chocks that allows the smaller to fit in the larger for storage, but easily separate to allow placement on the front and rear of a wheel to prevent a plane, or whatever is chocked from rolling.
Download Model from thingiverse
With this file you will be able to print Chocks 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 Chocks.