Yes on page 218 of the 1949 salesmans data book it says
"Running Board Saftey Tread Plate
Chevrolet running board sefety tread plate does not become slippery, no matter how much oil,grease, or water spill on it. Its tough material grains bite through to give sure footing"
these are great for daily drivers so you don't scratch up you running boards with small rocks n stuff cought in your shoe tread
Oh and Jim has these made right there in Missouri.
