Snowblower skids

I created this because I have a gravel driveway and I wanted something to both raise the snowblower a bit higher off of the gravel as well as allow it to glide easier.

I have two files uploaded, one that has a 20 mm thick tread and one that is 10 mm, the 20 mm was the original and it looks a bit of overkill, it is the one in the pictures. The 10 mm should not make much of a difference in sturdiness and uses less material, your choice.

I had seen something similar online for sale for over $60, so I figured I would give it a shot and make my own, this is my first remix and posted design.