All 3 clasps are commercially produced in solid .925 sterling silver.
Large circle toggle clasp:
Small circle toggle clasp:
trigger lobster clasp:
If you would like to give me an idea of the thickness of what you are making (or if I can discern it from the other items in your order), I am happy to use my judgement to tailor the various attaching jump rings to your needs. For example, a 20g light and thin byzantine chain would use smaller jump rings to attach the clasp than a 12g uber thick byzantine chain.
The included jump rings are the handmade jump rings I make in my home studio. The various jump ring sizes are subject to change based on stock levels.