pretty damn certain that its not a switchblade, its just a locking folding knife switchblades are automatic. that knife has a thumb tab on the blade for quick, easy opening. a switch wouldnt have this, as its not opened manually.
rings! i like that thick solid one... i haven't worn mine in a month.. my hands feel stiff and swollen.. even though they're not.
my dad gave me the three other ones, the one on my pinkie before he got sick (that's why it doesn't fit on my other fingers) the one on my index finger for one of my birthdays, and right before he got brain surgery he picked the one out on my other index finger (next to the hematite ring) i got that one at work... we sold them for like 2.99, i only sold a good five of them the whole time i worked there, people stole them a lot even though they were on my desk.