1-1/2" Black Plastic Round Head Sheet Metal Plugs (2 pcs.)

Diameter: 1-1/2"
Diameter 2: 1.85"
Thickness: .35"
Material: Plastic
Finish: Black
Head Style: Round
Style: Sheet Metal
Type: Hole Plug
Application: 1-3/5" hole

Box of 2.

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