It's nothing more than a pack of Spring Grip Organizers I found at Walmart and a little bolt and nut.
My grill came with a few holes in the back, very convenient:@)
Of course in a perfect world the holes in the spring clip would be the same distance apart as the two on my grill...
But this is my world and luckily one bolt is doing a fine job so far.
Simply screw the clip on...
I added the second one to the other side of the grill for when I want to use the side burner.
Wa-La! This is just an umbrella I had, I'm looking for one that's a little taller and wider to use with the grill.
But this is working fine for now-look at that shadow!
I also tried it with my full size patio umbrella and while the clip held it, I don't recommend it.
I think that pole is too big and that could cause trouble if some gusty wind kicked-up.
Please always use common sense and be very careful.