Reddit mentions of Expendables Kunai 3 Piece Thrower Set

Hmm... that looks like a smaller version of what I used to throw, and the 6.5" size will definitely make it a big tricky to learn. Bigger knives are much easier. You can find a set of "screaming eagles" pretty cheap if you find you enjoy knife throwing after you get frustrated.
I'm not gonna try to explain a technique that's much better explained from a real source, but one thing that definitely helped me when I started was doing short (6-10" flippy throws, instead of adding-force-but-not-trying-to-send-the-thing-spinning-like-a-bat-out-of-hell throws like you'll pick up pretty easily =p), 1/2 flip throws, nice and close just to begin to learn how to feel for the correct flip.

Also, do not be tempted to spin the bloody thing on your finger. I almost slit my wrist open with kunai.. good luck!

(also since you have kunai, have you ever read the history behind the design? )

Thanks a lot for the info, I did a bit of research and it still seems that gil hibben set would be the best for me. I'd prefer to keep the set under 50$, it doesnt have any guards on it or anything, and all the reviews are great. Is there anything wrong with it?

EDIT: I also found these, are they any good? 12 inches, no guards, theres a bit of grip but that can't make much of a difference.

ive been playing with throwing knives since i was a little kid. sometimes for laughs, my wife will toss things (old cd cases usually) in front of one of my targets and ill pin them to the targets. the kiddos always seem to get a kick out of it. i consider my knives toys. however if used correctly and with proper skill/training, they are very very deadly. personally, anything less than about 1ft for a throwing knife tells me that it doesnt have enough mass to carry the force im going to put into it. the smaller knives just plain dont penetrate enough. the ones i usually play with are fantastic. they easily go about 3 inches through a 2inch plywood sheet. i dont use traditional targets, i use asheet of plywood with an outline of a person with a map of the human circulatory system on it. something like this generally 1 puncture will not be enough to kill, but i suspect that somebody with a large knife sticking out of them, bleeding heavily will probably stop to reevaluate their priorities. 2 blades in any of thoes arteries at the same time, and a person starts leaking like a busted milk jug. when i practice with them, i generally keep 2 or 3 in my left hand that i can easily fan out for blocking and 1 in my right hand that i can strike with, putting 1 finger in the ring and holding it point down lets you use it traditional knife fighter style or swing it by the 1 finger with pretty surprising force. (about 2 inches deep into plywood) if you have a target at distance, you can easily tip the knife up and throw it, then grab another from your left hand to replace it. its alot faster and easier than you might think. the true flight knife that sonoflavey mentioned also looks decent, but ive practiced with screwdrivers before. pretty much anything with a little weight and a point works. in self defense terms, any heavyish aerodynamic piece of metal thrown hard enough is a fair deterrent and theyre just fun to play with. if you are going to play with them, why not play with them in a manner than makes them potentially useful? that said, since getting my concealed handguns licence, i much much prefer my .45, and the knives are pretty much just for fun.

Generally for knife throwing, bigger is better, the smaller ones tend bounce back randomly. With a larger, well-balanced knife you'll have a much easier time to consistently stick it. The no-spin technique is the easiest to learn quickly, just start close and work your way back. I personally use the Expendables Kunai Set, I kid you not. Not out of love for the movie, but because they're big well balanced blades.