Diameter: 5/16" Diameter 2: 5/8" Thickness: 1/4" Material: Rubber Finish: Black Type: Grommet Groove: 1/16" GrooveDiameter: 7/16" Groove: x 1/16" Box of 20. 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.
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