2 1/8-inch ID rubber retainer grommet.
Our latest solution for the camera hole
If you order your tire cover to be camera compatible, your cover will come with a grommet, you do not need to add this to your cart unless you want a back-up
Inside Dia. : 1 3/4 in
Outside Dia. : 2 3/8 in
Panel Thickness : 1/8 in
Overall Thickness : 3/8 in
Panel Hole Dia. : 2 in