Going to get this grommet to make an outdoor tablecloth out of oilcloth and then put in the plastic grommet for the umbrella to fit through. My umbrella was 1 3/4" in diameter, so I needed a large grommet. Super hard to find these! Finally, I found this place! They even sell hole punchers, but at $88/ea, unless I was selling table cloths, I would rather just cut the hole myself. PG50-16AB #15 (2\ inch )HeavyDuty Plastic Grommets,Brown,10 Pcs Set Per Bag
1-3/4" Cable Management Plastic Grommet, White, 1ea by WoodRiver. $3.69. If you are building new or altering old furniture by cutting holes to run cables and cords through, this 1-3/4" round white grommet is what you need to help hide those ugly raw edges. Standard two piece plastic grommets are easy to install, simply drill the appropriate size hole and insert the grommet.