Mini Kitty Self Defense Keychain Black Spring Assisted Knife - Black Plain

First I must say this is a really cool keychain. I like the fact that the knuckles are steel instead of plastic (like some other kitties I've seen) and how there is a knife built right in! But there are some design flaws I would like to mention.
1. The knife activation - The knife springs out perfectly and locks nicely but is not designed well. The latch to activate the knife just sticks out of the bottom and is not that hard to push. There is no safety on it and my concern is that while it is on my keychain it will pop open. Which is certainly not safe (its a pretty sharp little blade). I've already smacked my finger (thankfully with the unsharpened end, which btw was still a bit painful) with it just turning it around in my hand.
2. Operation - The knife can not be operated while your fingers are anywhere in the knuckles. You will get smacked and the knife will not open. You must open the knife first and then put your fingers in the knuckles which is kind of a pain.
3. Locking - the knife locks well but is hard to close again.the release is in the knuckle hole and is pain to get to.
4.The knuckles - the knuckles themselves are really solid and sturdy. I kind of wish the ears were pointier like they are on other self defense kitties, but they are still effective.
5. Knuckle and Knife operation - Another thing that bugged my with this self defense keychain was the fact that you can't really use the knuckles without deploying the knife. The latch that sticks out on the bottom will bruise your hand if you try to punch without the knife out.

Overall this is a cool keychain and was pretty cheep but I would not buy again unless the design flaws are fixed.