OK Guys, I was going to get rich on these grommets since 1 3/4" are so hard to find, but I'll let the cat out of the bag. Check my gallery. You,ll get a good laugh.
The top half is rubber and the bottom is plastic but they separate at just the right part. Very pliable and water tight. Haven't decided if I want bezels or not. These look good with some AmorAll.
Gman