7/8" Inside Diameter Rubber Grommet - 1/8" Groove Width - Fits 1-1/4" Panel Hole.

Specs:

Inside Diameter: 7/8"

Groove Width:  1/8"

Groove Diameter: 1-1/4"

Outside Diameter: 1-5/8"

Thickness: 1/2"

Can be used to seal holes, on pvc pipes, protect wires from sharp objects and many other uses. Durometer hardness - 60 Can be used indoors or outdoors.