I have this silver in the extra heavy, though need something a little finer for the 2,3,&4mm silk cord I'm using. I don't want to go any finer than this 'heavy' as it is too thin for my liking. I already have this weight in the gold tone so I know it works well w/ the light weight silk cord. Just finished a pearl bracelet using 2mm silk cord w/ the gold 'heavy' weight and it looks great! This stuff really makes a difference and is worth it!
It is very very fragile, it breaks off in the box by itself and unravel if pull slightly. I like the way it looks with the silk cord at the end though.
I was very discontent about the french wire, bought fine and heavy. It looked good, but it is just too thin and damages easily.