Source of Hole Plugs for Cord Management

I have drilled a couple of holes in the cabinets of my T@B to run some extension cords. I am looking for those plugs/grommets you can put in the holes with the caps that still allow the cord to run through.
Does anybody know of a good online source of those. I found a couple but the smallest one they have is for a 2" hole. I drilled a 1 1/2" hole.
Thanks!!
Does anybody know of a good online source of those. I found a couple but the smallest one they have is for a 2" hole. I drilled a 1 1/2" hole.
Thanks!!