1-3/8" Black Plastic Round Head Sheet Metal Plugs (3 pcs.)

Diameter: 1-3/8"
Diameter 2: 1.73"
Thickness: .35"
Material: Plastic
Finish: Black
Head Style: Round
Style: Sheet Metal
Type: Hole Plug
Application: 1-2/5" hole

Box of 3.

Hole plugs are used to cover a hole to prevent debris from entering.