We just thought it would be cool to print our own wheel chocks for the boat trailer. They also have a small boss on the inside so you can use two screws to provide extra grip on soft surfaces. Use a #10 x3/4” screw for asphalt or a 1” long screw for gravel or dirt.
A 3D printer is required to use these files. If you don’t have one already, they can be super fun. Our personal favorite is this little guy here.
We’re making these files available to download free of charge under Creative Commons licensing. For more details see here: Creative Commons Licensing