I was down to my last snap and swivel, had it now for 8 years. How I never snagged it up and lost it, don't know. A couple were given to me back in 1998 back in the US by Eric Warren the Double Loon spinner guy. That was all he could spare, he said they were the best to use with any in line spinner lure.
Will have to agree, they are very light weight, they don't seem to make a spinner out of balance. They do not twist your line. They are so nice to use.
I have looked everywhere for these in the US, now that I live in Canada haven't had any luck here either. I remember Eric saying he picked them up on a trip to the UK, got really serious a month ago and did some hunting and researching on the web. Found a similar item on Ailibaba, they were close but, not the same. After a bunch more searching came across a seller on ebay. He was based in the UK. Big problem, he would not ship overseas, claimed too many problems.............still had hope of obtaining some. Contacted a fellow hobbyist, who lives in the UK. He was more than happy to obtain them for me and ship them across. I am a happy camper, fisherman, now have 60 of them, should last awhile...LOL If you ever get a chance to try them, you will like them. Mustad Minus Swivel with Italian Snap.