Depending on your weave, you’ll want the small size for 22ga through 19ga, the medium size for 20ga through 16ga, and the large size for 18ga through 14ga. If you’re not sure which size to get, just get them all – they cost less than coffee. *grin*
Brass clasps are solid, as are the small copper clasps. Medium and large copper will be solid copper for as long as my supply holds out, but the company that was making them is now out of business, so I’ll have to switch to copper plated eventually.
Ten dollars store credit and eternal gratitude to anyone who can email me with an alternate source for solid copper lobsters!