Diameter: 3/16"
Diameter 2: 11/16"
Thickness: 0.4"
Material: Rubber
Finish: Black
Type: Grommet
Groove: 1/8"

Box of 8.

Grommets and eyelets are metal, plastic, or rubber rings that are inserted into a hole made through another material. They may be used to reinforce the hole, to shield something from the sharp edges of the hole, or both.