1/4" x 1/2" x 0.2" Black Rubber Grommets

Diameter: 1/4"
Diameter 2: 1/2"
Thickness: 0.2"
Material: Rubber
Finish: Black
Type: Grommet
Groove: 1/16"

Box of 10.

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.