I am not certain. However, I have found that if the hook is the right size for your “set-up”, having a decent off-set(some come with more of an angle than others, allowing the bait to slide more) it should be just as effective. Owners are the “top of the line” brand. I have found several cheaper brands that work as well. Unfortunately, last time I purchased them, I just grabbed them and left, putting them in my fishing vest. Since then I haven’t taken the time to look at the name, SORRY. I’ll try to remeber them. They are a lot cheaper, more to a package and a have a fairly sharp hook with a decent angle on the off-set!! Like Sampo ball bearing swivels, I wish they were more affordable, because they are the best!!! Keep the rods bendin’!!! Jim W