These basic little O rings are great for so many things. These are not welded, so if you need to open them, though, so can do so with a a pair of pliers (cover the pliers with masking tape to prevent scratching the finish).
Inside Diameter: 1/2 Inch (13 mm)
Outside Diameter: 11/16 Inch (17 mm)
2 mm Gauge
Metal with Brass Finish
On-Line Bulk Wholesale Ordering Coming Soon
Other Purchases May Be Made In Our Etsy Store