1/2" x 31/32" x 9/32" x 1/16" Black Rubber Grommets GRMTR-103 (8 pcs.)

Diameter: 1/2"
Diameter 2: 31/32"
Thickness: 9/32"
Material: Rubber
Finish: Black
Type: Grommet
Groove: 1/16"
GrooveDiameter: 3/4"
Groove: 3/32"
Groove: x 3/4"

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.