Sterling Silver Women's Bali Simulated Black Onyx Ring ( Sizes 6 7 8 9 10 11 12 ) Fashion Band 20mm Rings (Size 12) - Walmart.com
Men's 10k Yellow Gold Solid Heavy Nugget Ring Band 20mm Sizes 7 - 12 – Direct Source Gold & Diamond
10x Oil Drain Plug Crush Washer Gaskets For Subaru Ring Size 25mm Open Size 20mm | eBay
International Ring Size Conversion Chart | Olivia Ewing Jewelry
Saw Blade Bushing Set Saw Blade Adapter Ring, 1 Inch to 20 mm, 1 Inch to 5/8 Inch, 7/8 Inch to 5/8 Inch, 7/8 Inch to 20 mm,20 mmto 5/8 Inch, 5/8
Ring, stretch, silver-finished brass and "pewter" (zinc-based alloy), 8mm wide with 20mm perforated disk, size 6-1/2 to 8. Sold individually. - Fire Mountain Gems and Beads
uxcell Nitrile Rubber O-Rings 20mm OD 10mm ID 5mm Width, Metric Sealing Gasket for Automotive Machine Plumbing, Pack of 10: Amazon.com: Tools & Home Improvement