Not sure. They don't look like any of mine. I am confused as to why the question. Are you buying them on like ebay or something, or do you already have them and want to know if you should use them. If you already own them, go ahead and use them. If you are getting a really good deal on them, I would say go for it reguardless of the brand. Most manufacturers do not make their own stuff but instead buy it overseas and have their name printed on it. The overseas manufacturer often makes the same equipment for different brand names. Sometimes there are only slight differences just to give a different outward appearance but other times the only difference is the name (or lack of a name).
with everyone's imput on mfk i've chosen to go with the steath or jager depends on shipping cost to me.
but while i was on ebay i came accross this. so i figure i'd ask caues they too are a good deal. not that great, but could be if people have used them. so i thought i'd ask and give it a shot so i can research them.