7/8" Black Nylon Plastic Flush Head Hole Plugs HPN-081 (6 pcs.)

Diameter: 7/8"
Diameter 2: 1.03"
Thickness: .46"
Material: Nylon
Finish: Black
Head Style: Flush
Type: Hole Plug
Application: 9/10" hole

Box of 6.

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