18 gauge - (Thickest) ~ 1.1mm thick - Great for adding charms to charm bracelets or attaching toggles to chain. Very durable and almost impossible to open up without pliers.
If you have any questions about gauges or what might be the best choice for you, please feel free to email us anytime and we will get back to you as quickly as possible.
Always know with any of our products if you are not satisfied, we are not satisfied.